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Enable pty/tty functions for BSDs too (initial patch from Xen)
[mirror_qemu.git] / vl.c
1 /*
2 * QEMU System Emulator
3 *
4 * Copyright (c) 2003-2008 Fabrice Bellard
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
23 */
24 #include "hw/hw.h"
25 #include "hw/boards.h"
26 #include "hw/usb.h"
27 #include "hw/pcmcia.h"
28 #include "hw/pc.h"
29 #include "hw/audiodev.h"
30 #include "hw/isa.h"
31 #include "hw/baum.h"
32 #include "net.h"
33 #include "console.h"
34 #include "sysemu.h"
35 #include "gdbstub.h"
36 #include "qemu-timer.h"
37 #include "qemu-char.h"
38 #include "block.h"
39 #include "audio/audio.h"
40
41 #include <unistd.h>
42 #include <fcntl.h>
43 #include <signal.h>
44 #include <time.h>
45 #include <errno.h>
46 #include <sys/time.h>
47 #include <zlib.h>
48
49 #ifndef _WIN32
50 #include <sys/times.h>
51 #include <sys/wait.h>
52 #include <termios.h>
53 #include <sys/poll.h>
54 #include <sys/mman.h>
55 #include <sys/ioctl.h>
56 #include <sys/socket.h>
57 #include <netinet/in.h>
58 #include <dirent.h>
59 #include <netdb.h>
60 #include <sys/select.h>
61 #include <arpa/inet.h>
62 #ifdef _BSD
63 #include <sys/stat.h>
64 #if !defined(__APPLE__) && !defined(__OpenBSD__)
65 #include <libutil.h>
66 #endif
67 #ifdef __OpenBSD__
68 #include <net/if.h>
69 #endif
70 #elif defined (__GLIBC__) && defined (__FreeBSD_kernel__)
71 #include <freebsd/stdlib.h>
72 #else
73 #ifndef __sun__
74 #include <linux/if.h>
75 #include <linux/if_tun.h>
76 #include <pty.h>
77 #include <malloc.h>
78 #include <linux/rtc.h>
79
80 /* For the benefit of older linux systems which don't supply it,
81 we use a local copy of hpet.h. */
82 /* #include <linux/hpet.h> */
83 #include "hpet.h"
84
85 #include <linux/ppdev.h>
86 #include <linux/parport.h>
87 #else
88 #include <sys/stat.h>
89 #include <sys/ethernet.h>
90 #include <sys/sockio.h>
91 #include <netinet/arp.h>
92 #include <netinet/in.h>
93 #include <netinet/in_systm.h>
94 #include <netinet/ip.h>
95 #include <netinet/ip_icmp.h> // must come after ip.h
96 #include <netinet/udp.h>
97 #include <netinet/tcp.h>
98 #include <net/if.h>
99 #include <syslog.h>
100 #include <stropts.h>
101 #endif
102 #endif
103 #else
104 #include <winsock2.h>
105 int inet_aton(const char *cp, struct in_addr *ia);
106 #endif
107
108 #if defined(CONFIG_SLIRP)
109 #include "libslirp.h"
110 #endif
111
112 #if defined(__OpenBSD__)
113 #include <util.h>
114 #endif
115
116 #if defined(CONFIG_VDE)
117 #include <libvdeplug.h>
118 #endif
119
120 #ifdef _WIN32
121 #include <malloc.h>
122 #include <sys/timeb.h>
123 #include <mmsystem.h>
124 #define getopt_long_only getopt_long
125 #define memalign(align, size) malloc(size)
126 #endif
127
128 #include "qemu_socket.h"
129
130 #ifdef CONFIG_SDL
131 #ifdef __APPLE__
132 #include <SDL/SDL.h>
133 #endif
134 #endif /* CONFIG_SDL */
135
136 #ifdef CONFIG_COCOA
137 #undef main
138 #define main qemu_main
139 #endif /* CONFIG_COCOA */
140
141 #include "disas.h"
142
143 #include "exec-all.h"
144
145 #define DEFAULT_NETWORK_SCRIPT "/etc/qemu-ifup"
146 #define DEFAULT_NETWORK_DOWN_SCRIPT "/etc/qemu-ifdown"
147 #ifdef __sun__
148 #define SMBD_COMMAND "/usr/sfw/sbin/smbd"
149 #else
150 #define SMBD_COMMAND "/usr/sbin/smbd"
151 #endif
152
153 //#define DEBUG_UNUSED_IOPORT
154 //#define DEBUG_IOPORT
155
156 #ifdef TARGET_PPC
157 #define DEFAULT_RAM_SIZE 144
158 #else
159 #define DEFAULT_RAM_SIZE 128
160 #endif
161
162 /* Max number of USB devices that can be specified on the commandline. */
163 #define MAX_USB_CMDLINE 8
164
165 /* XXX: use a two level table to limit memory usage */
166 #define MAX_IOPORTS 65536
167
168 const char *bios_dir = CONFIG_QEMU_SHAREDIR;
169 const char *bios_name = NULL;
170 void *ioport_opaque[MAX_IOPORTS];
171 IOPortReadFunc *ioport_read_table[3][MAX_IOPORTS];
172 IOPortWriteFunc *ioport_write_table[3][MAX_IOPORTS];
173 /* Note: drives_table[MAX_DRIVES] is a dummy block driver if none available
174 to store the VM snapshots */
175 DriveInfo drives_table[MAX_DRIVES+1];
176 int nb_drives;
177 /* point to the block driver where the snapshots are managed */
178 BlockDriverState *bs_snapshots;
179 int vga_ram_size;
180 static DisplayState display_state;
181 int nographic;
182 int curses;
183 const char* keyboard_layout = NULL;
184 int64_t ticks_per_sec;
185 ram_addr_t ram_size;
186 int pit_min_timer_count = 0;
187 int nb_nics;
188 NICInfo nd_table[MAX_NICS];
189 int vm_running;
190 static int rtc_utc = 1;
191 static int rtc_date_offset = -1; /* -1 means no change */
192 int cirrus_vga_enabled = 1;
193 int vmsvga_enabled = 0;
194 #ifdef TARGET_SPARC
195 int graphic_width = 1024;
196 int graphic_height = 768;
197 int graphic_depth = 8;
198 #else
199 int graphic_width = 800;
200 int graphic_height = 600;
201 int graphic_depth = 15;
202 #endif
203 int full_screen = 0;
204 int no_frame = 0;
205 int no_quit = 0;
206 CharDriverState *serial_hds[MAX_SERIAL_PORTS];
207 CharDriverState *parallel_hds[MAX_PARALLEL_PORTS];
208 #ifdef TARGET_I386
209 int win2k_install_hack = 0;
210 #endif
211 int usb_enabled = 0;
212 static VLANState *first_vlan;
213 int smp_cpus = 1;
214 const char *vnc_display;
215 #if defined(TARGET_SPARC)
216 #define MAX_CPUS 16
217 #elif defined(TARGET_I386)
218 #define MAX_CPUS 255
219 #else
220 #define MAX_CPUS 1
221 #endif
222 int acpi_enabled = 1;
223 int fd_bootchk = 1;
224 int no_reboot = 0;
225 int no_shutdown = 0;
226 int cursor_hide = 1;
227 int graphic_rotate = 0;
228 int daemonize = 0;
229 const char *option_rom[MAX_OPTION_ROMS];
230 int nb_option_roms;
231 int semihosting_enabled = 0;
232 int autostart = 1;
233 #ifdef TARGET_ARM
234 int old_param = 0;
235 #endif
236 const char *qemu_name;
237 int alt_grab = 0;
238 #ifdef TARGET_SPARC
239 unsigned int nb_prom_envs = 0;
240 const char *prom_envs[MAX_PROM_ENVS];
241 #endif
242 int nb_drives_opt;
243 struct drive_opt {
244 const char *file;
245 char opt[1024];
246 } drives_opt[MAX_DRIVES];
247
248 static CPUState *cur_cpu;
249 static CPUState *next_cpu;
250 static int event_pending = 1;
251 /* Conversion factor from emulated instructions to virtual clock ticks. */
252 static int icount_time_shift;
253 /* Arbitrarily pick 1MIPS as the minimum allowable speed. */
254 #define MAX_ICOUNT_SHIFT 10
255 /* Compensate for varying guest execution speed. */
256 static int64_t qemu_icount_bias;
257 QEMUTimer *icount_rt_timer;
258 QEMUTimer *icount_vm_timer;
259
260 #define TFR(expr) do { if ((expr) != -1) break; } while (errno == EINTR)
261
262 /***********************************************************/
263 /* x86 ISA bus support */
264
265 target_phys_addr_t isa_mem_base = 0;
266 PicState2 *isa_pic;
267
268 static IOPortReadFunc default_ioport_readb, default_ioport_readw, default_ioport_readl;
269 static IOPortWriteFunc default_ioport_writeb, default_ioport_writew, default_ioport_writel;
270
271 static uint32_t ioport_read(int index, uint32_t address)
272 {
273 static IOPortReadFunc *default_func[3] = {
274 default_ioport_readb,
275 default_ioport_readw,
276 default_ioport_readl
277 };
278 IOPortReadFunc *func = ioport_read_table[index][address];
279 if (!func)
280 func = default_func[index];
281 return func(ioport_opaque[address], address);
282 }
283
284 static void ioport_write(int index, uint32_t address, uint32_t data)
285 {
286 static IOPortWriteFunc *default_func[3] = {
287 default_ioport_writeb,
288 default_ioport_writew,
289 default_ioport_writel
290 };
291 IOPortWriteFunc *func = ioport_write_table[index][address];
292 if (!func)
293 func = default_func[index];
294 func(ioport_opaque[address], address, data);
295 }
296
297 static uint32_t default_ioport_readb(void *opaque, uint32_t address)
298 {
299 #ifdef DEBUG_UNUSED_IOPORT
300 fprintf(stderr, "unused inb: port=0x%04x\n", address);
301 #endif
302 return 0xff;
303 }
304
305 static void default_ioport_writeb(void *opaque, uint32_t address, uint32_t data)
306 {
307 #ifdef DEBUG_UNUSED_IOPORT
308 fprintf(stderr, "unused outb: port=0x%04x data=0x%02x\n", address, data);
309 #endif
310 }
311
312 /* default is to make two byte accesses */
313 static uint32_t default_ioport_readw(void *opaque, uint32_t address)
314 {
315 uint32_t data;
316 data = ioport_read(0, address);
317 address = (address + 1) & (MAX_IOPORTS - 1);
318 data |= ioport_read(0, address) << 8;
319 return data;
320 }
321
322 static void default_ioport_writew(void *opaque, uint32_t address, uint32_t data)
323 {
324 ioport_write(0, address, data & 0xff);
325 address = (address + 1) & (MAX_IOPORTS - 1);
326 ioport_write(0, address, (data >> 8) & 0xff);
327 }
328
329 static uint32_t default_ioport_readl(void *opaque, uint32_t address)
330 {
331 #ifdef DEBUG_UNUSED_IOPORT
332 fprintf(stderr, "unused inl: port=0x%04x\n", address);
333 #endif
334 return 0xffffffff;
335 }
336
337 static void default_ioport_writel(void *opaque, uint32_t address, uint32_t data)
338 {
339 #ifdef DEBUG_UNUSED_IOPORT
340 fprintf(stderr, "unused outl: port=0x%04x data=0x%02x\n", address, data);
341 #endif
342 }
343
344 /* size is the word size in byte */
345 int register_ioport_read(int start, int length, int size,
346 IOPortReadFunc *func, void *opaque)
347 {
348 int i, bsize;
349
350 if (size == 1) {
351 bsize = 0;
352 } else if (size == 2) {
353 bsize = 1;
354 } else if (size == 4) {
355 bsize = 2;
356 } else {
357 hw_error("register_ioport_read: invalid size");
358 return -1;
359 }
360 for(i = start; i < start + length; i += size) {
361 ioport_read_table[bsize][i] = func;
362 if (ioport_opaque[i] != NULL && ioport_opaque[i] != opaque)
363 hw_error("register_ioport_read: invalid opaque");
364 ioport_opaque[i] = opaque;
365 }
366 return 0;
367 }
368
369 /* size is the word size in byte */
370 int register_ioport_write(int start, int length, int size,
371 IOPortWriteFunc *func, void *opaque)
372 {
373 int i, bsize;
374
375 if (size == 1) {
376 bsize = 0;
377 } else if (size == 2) {
378 bsize = 1;
379 } else if (size == 4) {
380 bsize = 2;
381 } else {
382 hw_error("register_ioport_write: invalid size");
383 return -1;
384 }
385 for(i = start; i < start + length; i += size) {
386 ioport_write_table[bsize][i] = func;
387 if (ioport_opaque[i] != NULL && ioport_opaque[i] != opaque)
388 hw_error("register_ioport_write: invalid opaque");
389 ioport_opaque[i] = opaque;
390 }
391 return 0;
392 }
393
394 void isa_unassign_ioport(int start, int length)
395 {
396 int i;
397
398 for(i = start; i < start + length; i++) {
399 ioport_read_table[0][i] = default_ioport_readb;
400 ioport_read_table[1][i] = default_ioport_readw;
401 ioport_read_table[2][i] = default_ioport_readl;
402
403 ioport_write_table[0][i] = default_ioport_writeb;
404 ioport_write_table[1][i] = default_ioport_writew;
405 ioport_write_table[2][i] = default_ioport_writel;
406 }
407 }
408
409 /***********************************************************/
410
411 void cpu_outb(CPUState *env, int addr, int val)
412 {
413 #ifdef DEBUG_IOPORT
414 if (loglevel & CPU_LOG_IOPORT)
415 fprintf(logfile, "outb: %04x %02x\n", addr, val);
416 #endif
417 ioport_write(0, addr, val);
418 #ifdef USE_KQEMU
419 if (env)
420 env->last_io_time = cpu_get_time_fast();
421 #endif
422 }
423
424 void cpu_outw(CPUState *env, int addr, int val)
425 {
426 #ifdef DEBUG_IOPORT
427 if (loglevel & CPU_LOG_IOPORT)
428 fprintf(logfile, "outw: %04x %04x\n", addr, val);
429 #endif
430 ioport_write(1, addr, val);
431 #ifdef USE_KQEMU
432 if (env)
433 env->last_io_time = cpu_get_time_fast();
434 #endif
435 }
436
437 void cpu_outl(CPUState *env, int addr, int val)
438 {
439 #ifdef DEBUG_IOPORT
440 if (loglevel & CPU_LOG_IOPORT)
441 fprintf(logfile, "outl: %04x %08x\n", addr, val);
442 #endif
443 ioport_write(2, addr, val);
444 #ifdef USE_KQEMU
445 if (env)
446 env->last_io_time = cpu_get_time_fast();
447 #endif
448 }
449
450 int cpu_inb(CPUState *env, int addr)
451 {
452 int val;
453 val = ioport_read(0, addr);
454 #ifdef DEBUG_IOPORT
455 if (loglevel & CPU_LOG_IOPORT)
456 fprintf(logfile, "inb : %04x %02x\n", addr, val);
457 #endif
458 #ifdef USE_KQEMU
459 if (env)
460 env->last_io_time = cpu_get_time_fast();
461 #endif
462 return val;
463 }
464
465 int cpu_inw(CPUState *env, int addr)
466 {
467 int val;
468 val = ioport_read(1, addr);
469 #ifdef DEBUG_IOPORT
470 if (loglevel & CPU_LOG_IOPORT)
471 fprintf(logfile, "inw : %04x %04x\n", addr, val);
472 #endif
473 #ifdef USE_KQEMU
474 if (env)
475 env->last_io_time = cpu_get_time_fast();
476 #endif
477 return val;
478 }
479
480 int cpu_inl(CPUState *env, int addr)
481 {
482 int val;
483 val = ioport_read(2, addr);
484 #ifdef DEBUG_IOPORT
485 if (loglevel & CPU_LOG_IOPORT)
486 fprintf(logfile, "inl : %04x %08x\n", addr, val);
487 #endif
488 #ifdef USE_KQEMU
489 if (env)
490 env->last_io_time = cpu_get_time_fast();
491 #endif
492 return val;
493 }
494
495 /***********************************************************/
496 void hw_error(const char *fmt, ...)
497 {
498 va_list ap;
499 CPUState *env;
500
501 va_start(ap, fmt);
502 fprintf(stderr, "qemu: hardware error: ");
503 vfprintf(stderr, fmt, ap);
504 fprintf(stderr, "\n");
505 for(env = first_cpu; env != NULL; env = env->next_cpu) {
506 fprintf(stderr, "CPU #%d:\n", env->cpu_index);
507 #ifdef TARGET_I386
508 cpu_dump_state(env, stderr, fprintf, X86_DUMP_FPU);
509 #else
510 cpu_dump_state(env, stderr, fprintf, 0);
511 #endif
512 }
513 va_end(ap);
514 abort();
515 }
516
517 /***********************************************************/
518 /* keyboard/mouse */
519
520 static QEMUPutKBDEvent *qemu_put_kbd_event;
521 static void *qemu_put_kbd_event_opaque;
522 static QEMUPutMouseEntry *qemu_put_mouse_event_head;
523 static QEMUPutMouseEntry *qemu_put_mouse_event_current;
524
525 void qemu_add_kbd_event_handler(QEMUPutKBDEvent *func, void *opaque)
526 {
527 qemu_put_kbd_event_opaque = opaque;
528 qemu_put_kbd_event = func;
529 }
530
531 QEMUPutMouseEntry *qemu_add_mouse_event_handler(QEMUPutMouseEvent *func,
532 void *opaque, int absolute,
533 const char *name)
534 {
535 QEMUPutMouseEntry *s, *cursor;
536
537 s = qemu_mallocz(sizeof(QEMUPutMouseEntry));
538 if (!s)
539 return NULL;
540
541 s->qemu_put_mouse_event = func;
542 s->qemu_put_mouse_event_opaque = opaque;
543 s->qemu_put_mouse_event_absolute = absolute;
544 s->qemu_put_mouse_event_name = qemu_strdup(name);
545 s->next = NULL;
546
547 if (!qemu_put_mouse_event_head) {
548 qemu_put_mouse_event_head = qemu_put_mouse_event_current = s;
549 return s;
550 }
551
552 cursor = qemu_put_mouse_event_head;
553 while (cursor->next != NULL)
554 cursor = cursor->next;
555
556 cursor->next = s;
557 qemu_put_mouse_event_current = s;
558
559 return s;
560 }
561
562 void qemu_remove_mouse_event_handler(QEMUPutMouseEntry *entry)
563 {
564 QEMUPutMouseEntry *prev = NULL, *cursor;
565
566 if (!qemu_put_mouse_event_head || entry == NULL)
567 return;
568
569 cursor = qemu_put_mouse_event_head;
570 while (cursor != NULL && cursor != entry) {
571 prev = cursor;
572 cursor = cursor->next;
573 }
574
575 if (cursor == NULL) // does not exist or list empty
576 return;
577 else if (prev == NULL) { // entry is head
578 qemu_put_mouse_event_head = cursor->next;
579 if (qemu_put_mouse_event_current == entry)
580 qemu_put_mouse_event_current = cursor->next;
581 qemu_free(entry->qemu_put_mouse_event_name);
582 qemu_free(entry);
583 return;
584 }
585
586 prev->next = entry->next;
587
588 if (qemu_put_mouse_event_current == entry)
589 qemu_put_mouse_event_current = prev;
590
591 qemu_free(entry->qemu_put_mouse_event_name);
592 qemu_free(entry);
593 }
594
595 void kbd_put_keycode(int keycode)
596 {
597 if (qemu_put_kbd_event) {
598 qemu_put_kbd_event(qemu_put_kbd_event_opaque, keycode);
599 }
600 }
601
602 void kbd_mouse_event(int dx, int dy, int dz, int buttons_state)
603 {
604 QEMUPutMouseEvent *mouse_event;
605 void *mouse_event_opaque;
606 int width;
607
608 if (!qemu_put_mouse_event_current) {
609 return;
610 }
611
612 mouse_event =
613 qemu_put_mouse_event_current->qemu_put_mouse_event;
614 mouse_event_opaque =
615 qemu_put_mouse_event_current->qemu_put_mouse_event_opaque;
616
617 if (mouse_event) {
618 if (graphic_rotate) {
619 if (qemu_put_mouse_event_current->qemu_put_mouse_event_absolute)
620 width = 0x7fff;
621 else
622 width = graphic_width - 1;
623 mouse_event(mouse_event_opaque,
624 width - dy, dx, dz, buttons_state);
625 } else
626 mouse_event(mouse_event_opaque,
627 dx, dy, dz, buttons_state);
628 }
629 }
630
631 int kbd_mouse_is_absolute(void)
632 {
633 if (!qemu_put_mouse_event_current)
634 return 0;
635
636 return qemu_put_mouse_event_current->qemu_put_mouse_event_absolute;
637 }
638
639 void do_info_mice(void)
640 {
641 QEMUPutMouseEntry *cursor;
642 int index = 0;
643
644 if (!qemu_put_mouse_event_head) {
645 term_printf("No mouse devices connected\n");
646 return;
647 }
648
649 term_printf("Mouse devices available:\n");
650 cursor = qemu_put_mouse_event_head;
651 while (cursor != NULL) {
652 term_printf("%c Mouse #%d: %s\n",
653 (cursor == qemu_put_mouse_event_current ? '*' : ' '),
654 index, cursor->qemu_put_mouse_event_name);
655 index++;
656 cursor = cursor->next;
657 }
658 }
659
660 void do_mouse_set(int index)
661 {
662 QEMUPutMouseEntry *cursor;
663 int i = 0;
664
665 if (!qemu_put_mouse_event_head) {
666 term_printf("No mouse devices connected\n");
667 return;
668 }
669
670 cursor = qemu_put_mouse_event_head;
671 while (cursor != NULL && index != i) {
672 i++;
673 cursor = cursor->next;
674 }
675
676 if (cursor != NULL)
677 qemu_put_mouse_event_current = cursor;
678 else
679 term_printf("Mouse at given index not found\n");
680 }
681
682 /* compute with 96 bit intermediate result: (a*b)/c */
683 uint64_t muldiv64(uint64_t a, uint32_t b, uint32_t c)
684 {
685 union {
686 uint64_t ll;
687 struct {
688 #ifdef WORDS_BIGENDIAN
689 uint32_t high, low;
690 #else
691 uint32_t low, high;
692 #endif
693 } l;
694 } u, res;
695 uint64_t rl, rh;
696
697 u.ll = a;
698 rl = (uint64_t)u.l.low * (uint64_t)b;
699 rh = (uint64_t)u.l.high * (uint64_t)b;
700 rh += (rl >> 32);
701 res.l.high = rh / c;
702 res.l.low = (((rh % c) << 32) + (rl & 0xffffffff)) / c;
703 return res.ll;
704 }
705
706 /***********************************************************/
707 /* real time host monotonic timer */
708
709 #define QEMU_TIMER_BASE 1000000000LL
710
711 #ifdef WIN32
712
713 static int64_t clock_freq;
714
715 static void init_get_clock(void)
716 {
717 LARGE_INTEGER freq;
718 int ret;
719 ret = QueryPerformanceFrequency(&freq);
720 if (ret == 0) {
721 fprintf(stderr, "Could not calibrate ticks\n");
722 exit(1);
723 }
724 clock_freq = freq.QuadPart;
725 }
726
727 static int64_t get_clock(void)
728 {
729 LARGE_INTEGER ti;
730 QueryPerformanceCounter(&ti);
731 return muldiv64(ti.QuadPart, QEMU_TIMER_BASE, clock_freq);
732 }
733
734 #else
735
736 static int use_rt_clock;
737
738 static void init_get_clock(void)
739 {
740 use_rt_clock = 0;
741 #if defined(__linux__)
742 {
743 struct timespec ts;
744 if (clock_gettime(CLOCK_MONOTONIC, &ts) == 0) {
745 use_rt_clock = 1;
746 }
747 }
748 #endif
749 }
750
751 static int64_t get_clock(void)
752 {
753 #if defined(__linux__)
754 if (use_rt_clock) {
755 struct timespec ts;
756 clock_gettime(CLOCK_MONOTONIC, &ts);
757 return ts.tv_sec * 1000000000LL + ts.tv_nsec;
758 } else
759 #endif
760 {
761 /* XXX: using gettimeofday leads to problems if the date
762 changes, so it should be avoided. */
763 struct timeval tv;
764 gettimeofday(&tv, NULL);
765 return tv.tv_sec * 1000000000LL + (tv.tv_usec * 1000);
766 }
767 }
768 #endif
769
770 /* Return the virtual CPU time, based on the instruction counter. */
771 static int64_t cpu_get_icount(void)
772 {
773 int64_t icount;
774 CPUState *env = cpu_single_env;;
775 icount = qemu_icount;
776 if (env) {
777 if (!can_do_io(env))
778 fprintf(stderr, "Bad clock read\n");
779 icount -= (env->icount_decr.u16.low + env->icount_extra);
780 }
781 return qemu_icount_bias + (icount << icount_time_shift);
782 }
783
784 /***********************************************************/
785 /* guest cycle counter */
786
787 static int64_t cpu_ticks_prev;
788 static int64_t cpu_ticks_offset;
789 static int64_t cpu_clock_offset;
790 static int cpu_ticks_enabled;
791
792 /* return the host CPU cycle counter and handle stop/restart */
793 int64_t cpu_get_ticks(void)
794 {
795 if (use_icount) {
796 return cpu_get_icount();
797 }
798 if (!cpu_ticks_enabled) {
799 return cpu_ticks_offset;
800 } else {
801 int64_t ticks;
802 ticks = cpu_get_real_ticks();
803 if (cpu_ticks_prev > ticks) {
804 /* Note: non increasing ticks may happen if the host uses
805 software suspend */
806 cpu_ticks_offset += cpu_ticks_prev - ticks;
807 }
808 cpu_ticks_prev = ticks;
809 return ticks + cpu_ticks_offset;
810 }
811 }
812
813 /* return the host CPU monotonic timer and handle stop/restart */
814 static int64_t cpu_get_clock(void)
815 {
816 int64_t ti;
817 if (!cpu_ticks_enabled) {
818 return cpu_clock_offset;
819 } else {
820 ti = get_clock();
821 return ti + cpu_clock_offset;
822 }
823 }
824
825 /* enable cpu_get_ticks() */
826 void cpu_enable_ticks(void)
827 {
828 if (!cpu_ticks_enabled) {
829 cpu_ticks_offset -= cpu_get_real_ticks();
830 cpu_clock_offset -= get_clock();
831 cpu_ticks_enabled = 1;
832 }
833 }
834
835 /* disable cpu_get_ticks() : the clock is stopped. You must not call
836 cpu_get_ticks() after that. */
837 void cpu_disable_ticks(void)
838 {
839 if (cpu_ticks_enabled) {
840 cpu_ticks_offset = cpu_get_ticks();
841 cpu_clock_offset = cpu_get_clock();
842 cpu_ticks_enabled = 0;
843 }
844 }
845
846 /***********************************************************/
847 /* timers */
848
849 #define QEMU_TIMER_REALTIME 0
850 #define QEMU_TIMER_VIRTUAL 1
851
852 struct QEMUClock {
853 int type;
854 /* XXX: add frequency */
855 };
856
857 struct QEMUTimer {
858 QEMUClock *clock;
859 int64_t expire_time;
860 QEMUTimerCB *cb;
861 void *opaque;
862 struct QEMUTimer *next;
863 };
864
865 struct qemu_alarm_timer {
866 char const *name;
867 unsigned int flags;
868
869 int (*start)(struct qemu_alarm_timer *t);
870 void (*stop)(struct qemu_alarm_timer *t);
871 void (*rearm)(struct qemu_alarm_timer *t);
872 void *priv;
873 };
874
875 #define ALARM_FLAG_DYNTICKS 0x1
876 #define ALARM_FLAG_EXPIRED 0x2
877
878 static inline int alarm_has_dynticks(struct qemu_alarm_timer *t)
879 {
880 return t->flags & ALARM_FLAG_DYNTICKS;
881 }
882
883 static void qemu_rearm_alarm_timer(struct qemu_alarm_timer *t)
884 {
885 if (!alarm_has_dynticks(t))
886 return;
887
888 t->rearm(t);
889 }
890
891 /* TODO: MIN_TIMER_REARM_US should be optimized */
892 #define MIN_TIMER_REARM_US 250
893
894 static struct qemu_alarm_timer *alarm_timer;
895
896 #ifdef _WIN32
897
898 struct qemu_alarm_win32 {
899 MMRESULT timerId;
900 HANDLE host_alarm;
901 unsigned int period;
902 } alarm_win32_data = {0, NULL, -1};
903
904 static int win32_start_timer(struct qemu_alarm_timer *t);
905 static void win32_stop_timer(struct qemu_alarm_timer *t);
906 static void win32_rearm_timer(struct qemu_alarm_timer *t);
907
908 #else
909
910 static int unix_start_timer(struct qemu_alarm_timer *t);
911 static void unix_stop_timer(struct qemu_alarm_timer *t);
912
913 #ifdef __linux__
914
915 static int dynticks_start_timer(struct qemu_alarm_timer *t);
916 static void dynticks_stop_timer(struct qemu_alarm_timer *t);
917 static void dynticks_rearm_timer(struct qemu_alarm_timer *t);
918
919 static int hpet_start_timer(struct qemu_alarm_timer *t);
920 static void hpet_stop_timer(struct qemu_alarm_timer *t);
921
922 static int rtc_start_timer(struct qemu_alarm_timer *t);
923 static void rtc_stop_timer(struct qemu_alarm_timer *t);
924
925 #endif /* __linux__ */
926
927 #endif /* _WIN32 */
928
929 /* Correlation between real and virtual time is always going to be
930 fairly approximate, so ignore small variation.
931 When the guest is idle real and virtual time will be aligned in
932 the IO wait loop. */
933 #define ICOUNT_WOBBLE (QEMU_TIMER_BASE / 10)
934
935 static void icount_adjust(void)
936 {
937 int64_t cur_time;
938 int64_t cur_icount;
939 int64_t delta;
940 static int64_t last_delta;
941 /* If the VM is not running, then do nothing. */
942 if (!vm_running)
943 return;
944
945 cur_time = cpu_get_clock();
946 cur_icount = qemu_get_clock(vm_clock);
947 delta = cur_icount - cur_time;
948 /* FIXME: This is a very crude algorithm, somewhat prone to oscillation. */
949 if (delta > 0
950 && last_delta + ICOUNT_WOBBLE < delta * 2
951 && icount_time_shift > 0) {
952 /* The guest is getting too far ahead. Slow time down. */
953 icount_time_shift--;
954 }
955 if (delta < 0
956 && last_delta - ICOUNT_WOBBLE > delta * 2
957 && icount_time_shift < MAX_ICOUNT_SHIFT) {
958 /* The guest is getting too far behind. Speed time up. */
959 icount_time_shift++;
960 }
961 last_delta = delta;
962 qemu_icount_bias = cur_icount - (qemu_icount << icount_time_shift);
963 }
964
965 static void icount_adjust_rt(void * opaque)
966 {
967 qemu_mod_timer(icount_rt_timer,
968 qemu_get_clock(rt_clock) + 1000);
969 icount_adjust();
970 }
971
972 static void icount_adjust_vm(void * opaque)
973 {
974 qemu_mod_timer(icount_vm_timer,
975 qemu_get_clock(vm_clock) + QEMU_TIMER_BASE / 10);
976 icount_adjust();
977 }
978
979 static void init_icount_adjust(void)
980 {
981 /* Have both realtime and virtual time triggers for speed adjustment.
982 The realtime trigger catches emulated time passing too slowly,
983 the virtual time trigger catches emulated time passing too fast.
984 Realtime triggers occur even when idle, so use them less frequently
985 than VM triggers. */
986 icount_rt_timer = qemu_new_timer(rt_clock, icount_adjust_rt, NULL);
987 qemu_mod_timer(icount_rt_timer,
988 qemu_get_clock(rt_clock) + 1000);
989 icount_vm_timer = qemu_new_timer(vm_clock, icount_adjust_vm, NULL);
990 qemu_mod_timer(icount_vm_timer,
991 qemu_get_clock(vm_clock) + QEMU_TIMER_BASE / 10);
992 }
993
994 static struct qemu_alarm_timer alarm_timers[] = {
995 #ifndef _WIN32
996 #ifdef __linux__
997 {"dynticks", ALARM_FLAG_DYNTICKS, dynticks_start_timer,
998 dynticks_stop_timer, dynticks_rearm_timer, NULL},
999 /* HPET - if available - is preferred */
1000 {"hpet", 0, hpet_start_timer, hpet_stop_timer, NULL, NULL},
1001 /* ...otherwise try RTC */
1002 {"rtc", 0, rtc_start_timer, rtc_stop_timer, NULL, NULL},
1003 #endif
1004 {"unix", 0, unix_start_timer, unix_stop_timer, NULL, NULL},
1005 #else
1006 {"dynticks", ALARM_FLAG_DYNTICKS, win32_start_timer,
1007 win32_stop_timer, win32_rearm_timer, &alarm_win32_data},
1008 {"win32", 0, win32_start_timer,
1009 win32_stop_timer, NULL, &alarm_win32_data},
1010 #endif
1011 {NULL, }
1012 };
1013
1014 static void show_available_alarms(void)
1015 {
1016 int i;
1017
1018 printf("Available alarm timers, in order of precedence:\n");
1019 for (i = 0; alarm_timers[i].name; i++)
1020 printf("%s\n", alarm_timers[i].name);
1021 }
1022
1023 static void configure_alarms(char const *opt)
1024 {
1025 int i;
1026 int cur = 0;
1027 int count = (sizeof(alarm_timers) / sizeof(*alarm_timers)) - 1;
1028 char *arg;
1029 char *name;
1030 struct qemu_alarm_timer tmp;
1031
1032 if (!strcmp(opt, "?")) {
1033 show_available_alarms();
1034 exit(0);
1035 }
1036
1037 arg = strdup(opt);
1038
1039 /* Reorder the array */
1040 name = strtok(arg, ",");
1041 while (name) {
1042 for (i = 0; i < count && alarm_timers[i].name; i++) {
1043 if (!strcmp(alarm_timers[i].name, name))
1044 break;
1045 }
1046
1047 if (i == count) {
1048 fprintf(stderr, "Unknown clock %s\n", name);
1049 goto next;
1050 }
1051
1052 if (i < cur)
1053 /* Ignore */
1054 goto next;
1055
1056 /* Swap */
1057 tmp = alarm_timers[i];
1058 alarm_timers[i] = alarm_timers[cur];
1059 alarm_timers[cur] = tmp;
1060
1061 cur++;
1062 next:
1063 name = strtok(NULL, ",");
1064 }
1065
1066 free(arg);
1067
1068 if (cur) {
1069 /* Disable remaining timers */
1070 for (i = cur; i < count; i++)
1071 alarm_timers[i].name = NULL;
1072 } else {
1073 show_available_alarms();
1074 exit(1);
1075 }
1076 }
1077
1078 QEMUClock *rt_clock;
1079 QEMUClock *vm_clock;
1080
1081 static QEMUTimer *active_timers[2];
1082
1083 static QEMUClock *qemu_new_clock(int type)
1084 {
1085 QEMUClock *clock;
1086 clock = qemu_mallocz(sizeof(QEMUClock));
1087 if (!clock)
1088 return NULL;
1089 clock->type = type;
1090 return clock;
1091 }
1092
1093 QEMUTimer *qemu_new_timer(QEMUClock *clock, QEMUTimerCB *cb, void *opaque)
1094 {
1095 QEMUTimer *ts;
1096
1097 ts = qemu_mallocz(sizeof(QEMUTimer));
1098 ts->clock = clock;
1099 ts->cb = cb;
1100 ts->opaque = opaque;
1101 return ts;
1102 }
1103
1104 void qemu_free_timer(QEMUTimer *ts)
1105 {
1106 qemu_free(ts);
1107 }
1108
1109 /* stop a timer, but do not dealloc it */
1110 void qemu_del_timer(QEMUTimer *ts)
1111 {
1112 QEMUTimer **pt, *t;
1113
1114 /* NOTE: this code must be signal safe because
1115 qemu_timer_expired() can be called from a signal. */
1116 pt = &active_timers[ts->clock->type];
1117 for(;;) {
1118 t = *pt;
1119 if (!t)
1120 break;
1121 if (t == ts) {
1122 *pt = t->next;
1123 break;
1124 }
1125 pt = &t->next;
1126 }
1127 }
1128
1129 /* modify the current timer so that it will be fired when current_time
1130 >= expire_time. The corresponding callback will be called. */
1131 void qemu_mod_timer(QEMUTimer *ts, int64_t expire_time)
1132 {
1133 QEMUTimer **pt, *t;
1134
1135 qemu_del_timer(ts);
1136
1137 /* add the timer in the sorted list */
1138 /* NOTE: this code must be signal safe because
1139 qemu_timer_expired() can be called from a signal. */
1140 pt = &active_timers[ts->clock->type];
1141 for(;;) {
1142 t = *pt;
1143 if (!t)
1144 break;
1145 if (t->expire_time > expire_time)
1146 break;
1147 pt = &t->next;
1148 }
1149 ts->expire_time = expire_time;
1150 ts->next = *pt;
1151 *pt = ts;
1152
1153 /* Rearm if necessary */
1154 if (pt == &active_timers[ts->clock->type]) {
1155 if ((alarm_timer->flags & ALARM_FLAG_EXPIRED) == 0) {
1156 qemu_rearm_alarm_timer(alarm_timer);
1157 }
1158 /* Interrupt execution to force deadline recalculation. */
1159 if (use_icount && cpu_single_env) {
1160 cpu_interrupt(cpu_single_env, CPU_INTERRUPT_EXIT);
1161 }
1162 }
1163 }
1164
1165 int qemu_timer_pending(QEMUTimer *ts)
1166 {
1167 QEMUTimer *t;
1168 for(t = active_timers[ts->clock->type]; t != NULL; t = t->next) {
1169 if (t == ts)
1170 return 1;
1171 }
1172 return 0;
1173 }
1174
1175 static inline int qemu_timer_expired(QEMUTimer *timer_head, int64_t current_time)
1176 {
1177 if (!timer_head)
1178 return 0;
1179 return (timer_head->expire_time <= current_time);
1180 }
1181
1182 static void qemu_run_timers(QEMUTimer **ptimer_head, int64_t current_time)
1183 {
1184 QEMUTimer *ts;
1185
1186 for(;;) {
1187 ts = *ptimer_head;
1188 if (!ts || ts->expire_time > current_time)
1189 break;
1190 /* remove timer from the list before calling the callback */
1191 *ptimer_head = ts->next;
1192 ts->next = NULL;
1193
1194 /* run the callback (the timer list can be modified) */
1195 ts->cb(ts->opaque);
1196 }
1197 }
1198
1199 int64_t qemu_get_clock(QEMUClock *clock)
1200 {
1201 switch(clock->type) {
1202 case QEMU_TIMER_REALTIME:
1203 return get_clock() / 1000000;
1204 default:
1205 case QEMU_TIMER_VIRTUAL:
1206 if (use_icount) {
1207 return cpu_get_icount();
1208 } else {
1209 return cpu_get_clock();
1210 }
1211 }
1212 }
1213
1214 static void init_timers(void)
1215 {
1216 init_get_clock();
1217 ticks_per_sec = QEMU_TIMER_BASE;
1218 rt_clock = qemu_new_clock(QEMU_TIMER_REALTIME);
1219 vm_clock = qemu_new_clock(QEMU_TIMER_VIRTUAL);
1220 }
1221
1222 /* save a timer */
1223 void qemu_put_timer(QEMUFile *f, QEMUTimer *ts)
1224 {
1225 uint64_t expire_time;
1226
1227 if (qemu_timer_pending(ts)) {
1228 expire_time = ts->expire_time;
1229 } else {
1230 expire_time = -1;
1231 }
1232 qemu_put_be64(f, expire_time);
1233 }
1234
1235 void qemu_get_timer(QEMUFile *f, QEMUTimer *ts)
1236 {
1237 uint64_t expire_time;
1238
1239 expire_time = qemu_get_be64(f);
1240 if (expire_time != -1) {
1241 qemu_mod_timer(ts, expire_time);
1242 } else {
1243 qemu_del_timer(ts);
1244 }
1245 }
1246
1247 static void timer_save(QEMUFile *f, void *opaque)
1248 {
1249 if (cpu_ticks_enabled) {
1250 hw_error("cannot save state if virtual timers are running");
1251 }
1252 qemu_put_be64(f, cpu_ticks_offset);
1253 qemu_put_be64(f, ticks_per_sec);
1254 qemu_put_be64(f, cpu_clock_offset);
1255 }
1256
1257 static int timer_load(QEMUFile *f, void *opaque, int version_id)
1258 {
1259 if (version_id != 1 && version_id != 2)
1260 return -EINVAL;
1261 if (cpu_ticks_enabled) {
1262 return -EINVAL;
1263 }
1264 cpu_ticks_offset=qemu_get_be64(f);
1265 ticks_per_sec=qemu_get_be64(f);
1266 if (version_id == 2) {
1267 cpu_clock_offset=qemu_get_be64(f);
1268 }
1269 return 0;
1270 }
1271
1272 #ifdef _WIN32
1273 void CALLBACK host_alarm_handler(UINT uTimerID, UINT uMsg,
1274 DWORD_PTR dwUser, DWORD_PTR dw1, DWORD_PTR dw2)
1275 #else
1276 static void host_alarm_handler(int host_signum)
1277 #endif
1278 {
1279 #if 0
1280 #define DISP_FREQ 1000
1281 {
1282 static int64_t delta_min = INT64_MAX;
1283 static int64_t delta_max, delta_cum, last_clock, delta, ti;
1284 static int count;
1285 ti = qemu_get_clock(vm_clock);
1286 if (last_clock != 0) {
1287 delta = ti - last_clock;
1288 if (delta < delta_min)
1289 delta_min = delta;
1290 if (delta > delta_max)
1291 delta_max = delta;
1292 delta_cum += delta;
1293 if (++count == DISP_FREQ) {
1294 printf("timer: min=%" PRId64 " us max=%" PRId64 " us avg=%" PRId64 " us avg_freq=%0.3f Hz\n",
1295 muldiv64(delta_min, 1000000, ticks_per_sec),
1296 muldiv64(delta_max, 1000000, ticks_per_sec),
1297 muldiv64(delta_cum, 1000000 / DISP_FREQ, ticks_per_sec),
1298 (double)ticks_per_sec / ((double)delta_cum / DISP_FREQ));
1299 count = 0;
1300 delta_min = INT64_MAX;
1301 delta_max = 0;
1302 delta_cum = 0;
1303 }
1304 }
1305 last_clock = ti;
1306 }
1307 #endif
1308 if (alarm_has_dynticks(alarm_timer) ||
1309 (!use_icount &&
1310 qemu_timer_expired(active_timers[QEMU_TIMER_VIRTUAL],
1311 qemu_get_clock(vm_clock))) ||
1312 qemu_timer_expired(active_timers[QEMU_TIMER_REALTIME],
1313 qemu_get_clock(rt_clock))) {
1314 #ifdef _WIN32
1315 struct qemu_alarm_win32 *data = ((struct qemu_alarm_timer*)dwUser)->priv;
1316 SetEvent(data->host_alarm);
1317 #endif
1318 CPUState *env = next_cpu;
1319
1320 alarm_timer->flags |= ALARM_FLAG_EXPIRED;
1321
1322 if (env) {
1323 /* stop the currently executing cpu because a timer occured */
1324 cpu_interrupt(env, CPU_INTERRUPT_EXIT);
1325 #ifdef USE_KQEMU
1326 if (env->kqemu_enabled) {
1327 kqemu_cpu_interrupt(env);
1328 }
1329 #endif
1330 }
1331 event_pending = 1;
1332 }
1333 }
1334
1335 static int64_t qemu_next_deadline(void)
1336 {
1337 int64_t delta;
1338
1339 if (active_timers[QEMU_TIMER_VIRTUAL]) {
1340 delta = active_timers[QEMU_TIMER_VIRTUAL]->expire_time -
1341 qemu_get_clock(vm_clock);
1342 } else {
1343 /* To avoid problems with overflow limit this to 2^32. */
1344 delta = INT32_MAX;
1345 }
1346
1347 if (delta < 0)
1348 delta = 0;
1349
1350 return delta;
1351 }
1352
1353 static uint64_t qemu_next_deadline_dyntick(void)
1354 {
1355 int64_t delta;
1356 int64_t rtdelta;
1357
1358 if (use_icount)
1359 delta = INT32_MAX;
1360 else
1361 delta = (qemu_next_deadline() + 999) / 1000;
1362
1363 if (active_timers[QEMU_TIMER_REALTIME]) {
1364 rtdelta = (active_timers[QEMU_TIMER_REALTIME]->expire_time -
1365 qemu_get_clock(rt_clock))*1000;
1366 if (rtdelta < delta)
1367 delta = rtdelta;
1368 }
1369
1370 if (delta < MIN_TIMER_REARM_US)
1371 delta = MIN_TIMER_REARM_US;
1372
1373 return delta;
1374 }
1375
1376 #ifndef _WIN32
1377
1378 #if defined(__linux__)
1379
1380 #define RTC_FREQ 1024
1381
1382 static void enable_sigio_timer(int fd)
1383 {
1384 struct sigaction act;
1385
1386 /* timer signal */
1387 sigfillset(&act.sa_mask);
1388 act.sa_flags = 0;
1389 act.sa_handler = host_alarm_handler;
1390
1391 sigaction(SIGIO, &act, NULL);
1392 fcntl(fd, F_SETFL, O_ASYNC);
1393 fcntl(fd, F_SETOWN, getpid());
1394 }
1395
1396 static int hpet_start_timer(struct qemu_alarm_timer *t)
1397 {
1398 struct hpet_info info;
1399 int r, fd;
1400
1401 fd = open("/dev/hpet", O_RDONLY);
1402 if (fd < 0)
1403 return -1;
1404
1405 /* Set frequency */
1406 r = ioctl(fd, HPET_IRQFREQ, RTC_FREQ);
1407 if (r < 0) {
1408 fprintf(stderr, "Could not configure '/dev/hpet' to have a 1024Hz timer. This is not a fatal\n"
1409 "error, but for better emulation accuracy type:\n"
1410 "'echo 1024 > /proc/sys/dev/hpet/max-user-freq' as root.\n");
1411 goto fail;
1412 }
1413
1414 /* Check capabilities */
1415 r = ioctl(fd, HPET_INFO, &info);
1416 if (r < 0)
1417 goto fail;
1418
1419 /* Enable periodic mode */
1420 r = ioctl(fd, HPET_EPI, 0);
1421 if (info.hi_flags && (r < 0))
1422 goto fail;
1423
1424 /* Enable interrupt */
1425 r = ioctl(fd, HPET_IE_ON, 0);
1426 if (r < 0)
1427 goto fail;
1428
1429 enable_sigio_timer(fd);
1430 t->priv = (void *)(long)fd;
1431
1432 return 0;
1433 fail:
1434 close(fd);
1435 return -1;
1436 }
1437
1438 static void hpet_stop_timer(struct qemu_alarm_timer *t)
1439 {
1440 int fd = (long)t->priv;
1441
1442 close(fd);
1443 }
1444
1445 static int rtc_start_timer(struct qemu_alarm_timer *t)
1446 {
1447 int rtc_fd;
1448 unsigned long current_rtc_freq = 0;
1449
1450 TFR(rtc_fd = open("/dev/rtc", O_RDONLY));
1451 if (rtc_fd < 0)
1452 return -1;
1453 ioctl(rtc_fd, RTC_IRQP_READ, &current_rtc_freq);
1454 if (current_rtc_freq != RTC_FREQ &&
1455 ioctl(rtc_fd, RTC_IRQP_SET, RTC_FREQ) < 0) {
1456 fprintf(stderr, "Could not configure '/dev/rtc' to have a 1024 Hz timer. This is not a fatal\n"
1457 "error, but for better emulation accuracy either use a 2.6 host Linux kernel or\n"
1458 "type 'echo 1024 > /proc/sys/dev/rtc/max-user-freq' as root.\n");
1459 goto fail;
1460 }
1461 if (ioctl(rtc_fd, RTC_PIE_ON, 0) < 0) {
1462 fail:
1463 close(rtc_fd);
1464 return -1;
1465 }
1466
1467 enable_sigio_timer(rtc_fd);
1468
1469 t->priv = (void *)(long)rtc_fd;
1470
1471 return 0;
1472 }
1473
1474 static void rtc_stop_timer(struct qemu_alarm_timer *t)
1475 {
1476 int rtc_fd = (long)t->priv;
1477
1478 close(rtc_fd);
1479 }
1480
1481 static int dynticks_start_timer(struct qemu_alarm_timer *t)
1482 {
1483 struct sigevent ev;
1484 timer_t host_timer;
1485 struct sigaction act;
1486
1487 sigfillset(&act.sa_mask);
1488 act.sa_flags = 0;
1489 act.sa_handler = host_alarm_handler;
1490
1491 sigaction(SIGALRM, &act, NULL);
1492
1493 ev.sigev_value.sival_int = 0;
1494 ev.sigev_notify = SIGEV_SIGNAL;
1495 ev.sigev_signo = SIGALRM;
1496
1497 if (timer_create(CLOCK_REALTIME, &ev, &host_timer)) {
1498 perror("timer_create");
1499
1500 /* disable dynticks */
1501 fprintf(stderr, "Dynamic Ticks disabled\n");
1502
1503 return -1;
1504 }
1505
1506 t->priv = (void *)host_timer;
1507
1508 return 0;
1509 }
1510
1511 static void dynticks_stop_timer(struct qemu_alarm_timer *t)
1512 {
1513 timer_t host_timer = (timer_t)t->priv;
1514
1515 timer_delete(host_timer);
1516 }
1517
1518 static void dynticks_rearm_timer(struct qemu_alarm_timer *t)
1519 {
1520 timer_t host_timer = (timer_t)t->priv;
1521 struct itimerspec timeout;
1522 int64_t nearest_delta_us = INT64_MAX;
1523 int64_t current_us;
1524
1525 if (!active_timers[QEMU_TIMER_REALTIME] &&
1526 !active_timers[QEMU_TIMER_VIRTUAL])
1527 return;
1528
1529 nearest_delta_us = qemu_next_deadline_dyntick();
1530
1531 /* check whether a timer is already running */
1532 if (timer_gettime(host_timer, &timeout)) {
1533 perror("gettime");
1534 fprintf(stderr, "Internal timer error: aborting\n");
1535 exit(1);
1536 }
1537 current_us = timeout.it_value.tv_sec * 1000000 + timeout.it_value.tv_nsec/1000;
1538 if (current_us && current_us <= nearest_delta_us)
1539 return;
1540
1541 timeout.it_interval.tv_sec = 0;
1542 timeout.it_interval.tv_nsec = 0; /* 0 for one-shot timer */
1543 timeout.it_value.tv_sec = nearest_delta_us / 1000000;
1544 timeout.it_value.tv_nsec = (nearest_delta_us % 1000000) * 1000;
1545 if (timer_settime(host_timer, 0 /* RELATIVE */, &timeout, NULL)) {
1546 perror("settime");
1547 fprintf(stderr, "Internal timer error: aborting\n");
1548 exit(1);
1549 }
1550 }
1551
1552 #endif /* defined(__linux__) */
1553
1554 static int unix_start_timer(struct qemu_alarm_timer *t)
1555 {
1556 struct sigaction act;
1557 struct itimerval itv;
1558 int err;
1559
1560 /* timer signal */
1561 sigfillset(&act.sa_mask);
1562 act.sa_flags = 0;
1563 act.sa_handler = host_alarm_handler;
1564
1565 sigaction(SIGALRM, &act, NULL);
1566
1567 itv.it_interval.tv_sec = 0;
1568 /* for i386 kernel 2.6 to get 1 ms */
1569 itv.it_interval.tv_usec = 999;
1570 itv.it_value.tv_sec = 0;
1571 itv.it_value.tv_usec = 10 * 1000;
1572
1573 err = setitimer(ITIMER_REAL, &itv, NULL);
1574 if (err)
1575 return -1;
1576
1577 return 0;
1578 }
1579
1580 static void unix_stop_timer(struct qemu_alarm_timer *t)
1581 {
1582 struct itimerval itv;
1583
1584 memset(&itv, 0, sizeof(itv));
1585 setitimer(ITIMER_REAL, &itv, NULL);
1586 }
1587
1588 #endif /* !defined(_WIN32) */
1589
1590 #ifdef _WIN32
1591
1592 static int win32_start_timer(struct qemu_alarm_timer *t)
1593 {
1594 TIMECAPS tc;
1595 struct qemu_alarm_win32 *data = t->priv;
1596 UINT flags;
1597
1598 data->host_alarm = CreateEvent(NULL, FALSE, FALSE, NULL);
1599 if (!data->host_alarm) {
1600 perror("Failed CreateEvent");
1601 return -1;
1602 }
1603
1604 memset(&tc, 0, sizeof(tc));
1605 timeGetDevCaps(&tc, sizeof(tc));
1606
1607 if (data->period < tc.wPeriodMin)
1608 data->period = tc.wPeriodMin;
1609
1610 timeBeginPeriod(data->period);
1611
1612 flags = TIME_CALLBACK_FUNCTION;
1613 if (alarm_has_dynticks(t))
1614 flags |= TIME_ONESHOT;
1615 else
1616 flags |= TIME_PERIODIC;
1617
1618 data->timerId = timeSetEvent(1, // interval (ms)
1619 data->period, // resolution
1620 host_alarm_handler, // function
1621 (DWORD)t, // parameter
1622 flags);
1623
1624 if (!data->timerId) {
1625 perror("Failed to initialize win32 alarm timer");
1626
1627 timeEndPeriod(data->period);
1628 CloseHandle(data->host_alarm);
1629 return -1;
1630 }
1631
1632 qemu_add_wait_object(data->host_alarm, NULL, NULL);
1633
1634 return 0;
1635 }
1636
1637 static void win32_stop_timer(struct qemu_alarm_timer *t)
1638 {
1639 struct qemu_alarm_win32 *data = t->priv;
1640
1641 timeKillEvent(data->timerId);
1642 timeEndPeriod(data->period);
1643
1644 CloseHandle(data->host_alarm);
1645 }
1646
1647 static void win32_rearm_timer(struct qemu_alarm_timer *t)
1648 {
1649 struct qemu_alarm_win32 *data = t->priv;
1650 uint64_t nearest_delta_us;
1651
1652 if (!active_timers[QEMU_TIMER_REALTIME] &&
1653 !active_timers[QEMU_TIMER_VIRTUAL])
1654 return;
1655
1656 nearest_delta_us = qemu_next_deadline_dyntick();
1657 nearest_delta_us /= 1000;
1658
1659 timeKillEvent(data->timerId);
1660
1661 data->timerId = timeSetEvent(1,
1662 data->period,
1663 host_alarm_handler,
1664 (DWORD)t,
1665 TIME_ONESHOT | TIME_PERIODIC);
1666
1667 if (!data->timerId) {
1668 perror("Failed to re-arm win32 alarm timer");
1669
1670 timeEndPeriod(data->period);
1671 CloseHandle(data->host_alarm);
1672 exit(1);
1673 }
1674 }
1675
1676 #endif /* _WIN32 */
1677
1678 static void init_timer_alarm(void)
1679 {
1680 struct qemu_alarm_timer *t;
1681 int i, err = -1;
1682
1683 for (i = 0; alarm_timers[i].name; i++) {
1684 t = &alarm_timers[i];
1685
1686 err = t->start(t);
1687 if (!err)
1688 break;
1689 }
1690
1691 if (err) {
1692 fprintf(stderr, "Unable to find any suitable alarm timer.\n");
1693 fprintf(stderr, "Terminating\n");
1694 exit(1);
1695 }
1696
1697 alarm_timer = t;
1698 }
1699
1700 static void quit_timers(void)
1701 {
1702 alarm_timer->stop(alarm_timer);
1703 alarm_timer = NULL;
1704 }
1705
1706 /***********************************************************/
1707 /* host time/date access */
1708 void qemu_get_timedate(struct tm *tm, int offset)
1709 {
1710 time_t ti;
1711 struct tm *ret;
1712
1713 time(&ti);
1714 ti += offset;
1715 if (rtc_date_offset == -1) {
1716 if (rtc_utc)
1717 ret = gmtime(&ti);
1718 else
1719 ret = localtime(&ti);
1720 } else {
1721 ti -= rtc_date_offset;
1722 ret = gmtime(&ti);
1723 }
1724
1725 memcpy(tm, ret, sizeof(struct tm));
1726 }
1727
1728 int qemu_timedate_diff(struct tm *tm)
1729 {
1730 time_t seconds;
1731
1732 if (rtc_date_offset == -1)
1733 if (rtc_utc)
1734 seconds = mktimegm(tm);
1735 else
1736 seconds = mktime(tm);
1737 else
1738 seconds = mktimegm(tm) + rtc_date_offset;
1739
1740 return seconds - time(NULL);
1741 }
1742
1743 /***********************************************************/
1744 /* character device */
1745
1746 static void qemu_chr_event(CharDriverState *s, int event)
1747 {
1748 if (!s->chr_event)
1749 return;
1750 s->chr_event(s->handler_opaque, event);
1751 }
1752
1753 static void qemu_chr_reset_bh(void *opaque)
1754 {
1755 CharDriverState *s = opaque;
1756 qemu_chr_event(s, CHR_EVENT_RESET);
1757 qemu_bh_delete(s->bh);
1758 s->bh = NULL;
1759 }
1760
1761 void qemu_chr_reset(CharDriverState *s)
1762 {
1763 if (s->bh == NULL) {
1764 s->bh = qemu_bh_new(qemu_chr_reset_bh, s);
1765 qemu_bh_schedule(s->bh);
1766 }
1767 }
1768
1769 int qemu_chr_write(CharDriverState *s, const uint8_t *buf, int len)
1770 {
1771 return s->chr_write(s, buf, len);
1772 }
1773
1774 int qemu_chr_ioctl(CharDriverState *s, int cmd, void *arg)
1775 {
1776 if (!s->chr_ioctl)
1777 return -ENOTSUP;
1778 return s->chr_ioctl(s, cmd, arg);
1779 }
1780
1781 int qemu_chr_can_read(CharDriverState *s)
1782 {
1783 if (!s->chr_can_read)
1784 return 0;
1785 return s->chr_can_read(s->handler_opaque);
1786 }
1787
1788 void qemu_chr_read(CharDriverState *s, uint8_t *buf, int len)
1789 {
1790 s->chr_read(s->handler_opaque, buf, len);
1791 }
1792
1793 void qemu_chr_accept_input(CharDriverState *s)
1794 {
1795 if (s->chr_accept_input)
1796 s->chr_accept_input(s);
1797 }
1798
1799 void qemu_chr_printf(CharDriverState *s, const char *fmt, ...)
1800 {
1801 char buf[4096];
1802 va_list ap;
1803 va_start(ap, fmt);
1804 vsnprintf(buf, sizeof(buf), fmt, ap);
1805 qemu_chr_write(s, (uint8_t *)buf, strlen(buf));
1806 va_end(ap);
1807 }
1808
1809 void qemu_chr_send_event(CharDriverState *s, int event)
1810 {
1811 if (s->chr_send_event)
1812 s->chr_send_event(s, event);
1813 }
1814
1815 void qemu_chr_add_handlers(CharDriverState *s,
1816 IOCanRWHandler *fd_can_read,
1817 IOReadHandler *fd_read,
1818 IOEventHandler *fd_event,
1819 void *opaque)
1820 {
1821 s->chr_can_read = fd_can_read;
1822 s->chr_read = fd_read;
1823 s->chr_event = fd_event;
1824 s->handler_opaque = opaque;
1825 if (s->chr_update_read_handler)
1826 s->chr_update_read_handler(s);
1827 }
1828
1829 static int null_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
1830 {
1831 return len;
1832 }
1833
1834 static CharDriverState *qemu_chr_open_null(void)
1835 {
1836 CharDriverState *chr;
1837
1838 chr = qemu_mallocz(sizeof(CharDriverState));
1839 if (!chr)
1840 return NULL;
1841 chr->chr_write = null_chr_write;
1842 return chr;
1843 }
1844
1845 /* MUX driver for serial I/O splitting */
1846 static int term_timestamps;
1847 static int64_t term_timestamps_start;
1848 #define MAX_MUX 4
1849 #define MUX_BUFFER_SIZE 32 /* Must be a power of 2. */
1850 #define MUX_BUFFER_MASK (MUX_BUFFER_SIZE - 1)
1851 typedef struct {
1852 IOCanRWHandler *chr_can_read[MAX_MUX];
1853 IOReadHandler *chr_read[MAX_MUX];
1854 IOEventHandler *chr_event[MAX_MUX];
1855 void *ext_opaque[MAX_MUX];
1856 CharDriverState *drv;
1857 unsigned char buffer[MUX_BUFFER_SIZE];
1858 int prod;
1859 int cons;
1860 int mux_cnt;
1861 int term_got_escape;
1862 int max_size;
1863 } MuxDriver;
1864
1865
1866 static int mux_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
1867 {
1868 MuxDriver *d = chr->opaque;
1869 int ret;
1870 if (!term_timestamps) {
1871 ret = d->drv->chr_write(d->drv, buf, len);
1872 } else {
1873 int i;
1874
1875 ret = 0;
1876 for(i = 0; i < len; i++) {
1877 ret += d->drv->chr_write(d->drv, buf+i, 1);
1878 if (buf[i] == '\n') {
1879 char buf1[64];
1880 int64_t ti;
1881 int secs;
1882
1883 ti = get_clock();
1884 if (term_timestamps_start == -1)
1885 term_timestamps_start = ti;
1886 ti -= term_timestamps_start;
1887 secs = ti / 1000000000;
1888 snprintf(buf1, sizeof(buf1),
1889 "[%02d:%02d:%02d.%03d] ",
1890 secs / 3600,
1891 (secs / 60) % 60,
1892 secs % 60,
1893 (int)((ti / 1000000) % 1000));
1894 d->drv->chr_write(d->drv, (uint8_t *)buf1, strlen(buf1));
1895 }
1896 }
1897 }
1898 return ret;
1899 }
1900
1901 static char *mux_help[] = {
1902 "% h print this help\n\r",
1903 "% x exit emulator\n\r",
1904 "% s save disk data back to file (if -snapshot)\n\r",
1905 "% t toggle console timestamps\n\r"
1906 "% b send break (magic sysrq)\n\r",
1907 "% c switch between console and monitor\n\r",
1908 "% % sends %\n\r",
1909 NULL
1910 };
1911
1912 static int term_escape_char = 0x01; /* ctrl-a is used for escape */
1913 static void mux_print_help(CharDriverState *chr)
1914 {
1915 int i, j;
1916 char ebuf[15] = "Escape-Char";
1917 char cbuf[50] = "\n\r";
1918
1919 if (term_escape_char > 0 && term_escape_char < 26) {
1920 snprintf(cbuf, sizeof(cbuf), "\n\r");
1921 snprintf(ebuf, sizeof(ebuf), "C-%c", term_escape_char - 1 + 'a');
1922 } else {
1923 snprintf(cbuf, sizeof(cbuf),
1924 "\n\rEscape-Char set to Ascii: 0x%02x\n\r\n\r",
1925 term_escape_char);
1926 }
1927 chr->chr_write(chr, (uint8_t *)cbuf, strlen(cbuf));
1928 for (i = 0; mux_help[i] != NULL; i++) {
1929 for (j=0; mux_help[i][j] != '\0'; j++) {
1930 if (mux_help[i][j] == '%')
1931 chr->chr_write(chr, (uint8_t *)ebuf, strlen(ebuf));
1932 else
1933 chr->chr_write(chr, (uint8_t *)&mux_help[i][j], 1);
1934 }
1935 }
1936 }
1937
1938 static int mux_proc_byte(CharDriverState *chr, MuxDriver *d, int ch)
1939 {
1940 if (d->term_got_escape) {
1941 d->term_got_escape = 0;
1942 if (ch == term_escape_char)
1943 goto send_char;
1944 switch(ch) {
1945 case '?':
1946 case 'h':
1947 mux_print_help(chr);
1948 break;
1949 case 'x':
1950 {
1951 char *term = "QEMU: Terminated\n\r";
1952 chr->chr_write(chr,(uint8_t *)term,strlen(term));
1953 exit(0);
1954 break;
1955 }
1956 case 's':
1957 {
1958 int i;
1959 for (i = 0; i < nb_drives; i++) {
1960 bdrv_commit(drives_table[i].bdrv);
1961 }
1962 }
1963 break;
1964 case 'b':
1965 qemu_chr_event(chr, CHR_EVENT_BREAK);
1966 break;
1967 case 'c':
1968 /* Switch to the next registered device */
1969 chr->focus++;
1970 if (chr->focus >= d->mux_cnt)
1971 chr->focus = 0;
1972 break;
1973 case 't':
1974 term_timestamps = !term_timestamps;
1975 term_timestamps_start = -1;
1976 break;
1977 }
1978 } else if (ch == term_escape_char) {
1979 d->term_got_escape = 1;
1980 } else {
1981 send_char:
1982 return 1;
1983 }
1984 return 0;
1985 }
1986
1987 static void mux_chr_accept_input(CharDriverState *chr)
1988 {
1989 int m = chr->focus;
1990 MuxDriver *d = chr->opaque;
1991
1992 while (d->prod != d->cons &&
1993 d->chr_can_read[m] &&
1994 d->chr_can_read[m](d->ext_opaque[m])) {
1995 d->chr_read[m](d->ext_opaque[m],
1996 &d->buffer[d->cons++ & MUX_BUFFER_MASK], 1);
1997 }
1998 }
1999
2000 static int mux_chr_can_read(void *opaque)
2001 {
2002 CharDriverState *chr = opaque;
2003 MuxDriver *d = chr->opaque;
2004
2005 if ((d->prod - d->cons) < MUX_BUFFER_SIZE)
2006 return 1;
2007 if (d->chr_can_read[chr->focus])
2008 return d->chr_can_read[chr->focus](d->ext_opaque[chr->focus]);
2009 return 0;
2010 }
2011
2012 static void mux_chr_read(void *opaque, const uint8_t *buf, int size)
2013 {
2014 CharDriverState *chr = opaque;
2015 MuxDriver *d = chr->opaque;
2016 int m = chr->focus;
2017 int i;
2018
2019 mux_chr_accept_input (opaque);
2020
2021 for(i = 0; i < size; i++)
2022 if (mux_proc_byte(chr, d, buf[i])) {
2023 if (d->prod == d->cons &&
2024 d->chr_can_read[m] &&
2025 d->chr_can_read[m](d->ext_opaque[m]))
2026 d->chr_read[m](d->ext_opaque[m], &buf[i], 1);
2027 else
2028 d->buffer[d->prod++ & MUX_BUFFER_MASK] = buf[i];
2029 }
2030 }
2031
2032 static void mux_chr_event(void *opaque, int event)
2033 {
2034 CharDriverState *chr = opaque;
2035 MuxDriver *d = chr->opaque;
2036 int i;
2037
2038 /* Send the event to all registered listeners */
2039 for (i = 0; i < d->mux_cnt; i++)
2040 if (d->chr_event[i])
2041 d->chr_event[i](d->ext_opaque[i], event);
2042 }
2043
2044 static void mux_chr_update_read_handler(CharDriverState *chr)
2045 {
2046 MuxDriver *d = chr->opaque;
2047
2048 if (d->mux_cnt >= MAX_MUX) {
2049 fprintf(stderr, "Cannot add I/O handlers, MUX array is full\n");
2050 return;
2051 }
2052 d->ext_opaque[d->mux_cnt] = chr->handler_opaque;
2053 d->chr_can_read[d->mux_cnt] = chr->chr_can_read;
2054 d->chr_read[d->mux_cnt] = chr->chr_read;
2055 d->chr_event[d->mux_cnt] = chr->chr_event;
2056 /* Fix up the real driver with mux routines */
2057 if (d->mux_cnt == 0) {
2058 qemu_chr_add_handlers(d->drv, mux_chr_can_read, mux_chr_read,
2059 mux_chr_event, chr);
2060 }
2061 chr->focus = d->mux_cnt;
2062 d->mux_cnt++;
2063 }
2064
2065 static CharDriverState *qemu_chr_open_mux(CharDriverState *drv)
2066 {
2067 CharDriverState *chr;
2068 MuxDriver *d;
2069
2070 chr = qemu_mallocz(sizeof(CharDriverState));
2071 if (!chr)
2072 return NULL;
2073 d = qemu_mallocz(sizeof(MuxDriver));
2074 if (!d) {
2075 free(chr);
2076 return NULL;
2077 }
2078
2079 chr->opaque = d;
2080 d->drv = drv;
2081 chr->focus = -1;
2082 chr->chr_write = mux_chr_write;
2083 chr->chr_update_read_handler = mux_chr_update_read_handler;
2084 chr->chr_accept_input = mux_chr_accept_input;
2085 return chr;
2086 }
2087
2088
2089 #ifdef _WIN32
2090
2091 static void socket_cleanup(void)
2092 {
2093 WSACleanup();
2094 }
2095
2096 static int socket_init(void)
2097 {
2098 WSADATA Data;
2099 int ret, err;
2100
2101 ret = WSAStartup(MAKEWORD(2,2), &Data);
2102 if (ret != 0) {
2103 err = WSAGetLastError();
2104 fprintf(stderr, "WSAStartup: %d\n", err);
2105 return -1;
2106 }
2107 atexit(socket_cleanup);
2108 return 0;
2109 }
2110
2111 static int send_all(int fd, const uint8_t *buf, int len1)
2112 {
2113 int ret, len;
2114
2115 len = len1;
2116 while (len > 0) {
2117 ret = send(fd, buf, len, 0);
2118 if (ret < 0) {
2119 int errno;
2120 errno = WSAGetLastError();
2121 if (errno != WSAEWOULDBLOCK) {
2122 return -1;
2123 }
2124 } else if (ret == 0) {
2125 break;
2126 } else {
2127 buf += ret;
2128 len -= ret;
2129 }
2130 }
2131 return len1 - len;
2132 }
2133
2134 void socket_set_nonblock(int fd)
2135 {
2136 unsigned long opt = 1;
2137 ioctlsocket(fd, FIONBIO, &opt);
2138 }
2139
2140 #else
2141
2142 static int unix_write(int fd, const uint8_t *buf, int len1)
2143 {
2144 int ret, len;
2145
2146 len = len1;
2147 while (len > 0) {
2148 ret = write(fd, buf, len);
2149 if (ret < 0) {
2150 if (errno != EINTR && errno != EAGAIN)
2151 return -1;
2152 } else if (ret == 0) {
2153 break;
2154 } else {
2155 buf += ret;
2156 len -= ret;
2157 }
2158 }
2159 return len1 - len;
2160 }
2161
2162 static inline int send_all(int fd, const uint8_t *buf, int len1)
2163 {
2164 return unix_write(fd, buf, len1);
2165 }
2166
2167 void socket_set_nonblock(int fd)
2168 {
2169 int f;
2170 f = fcntl(fd, F_GETFL);
2171 fcntl(fd, F_SETFL, f | O_NONBLOCK);
2172 }
2173 #endif /* !_WIN32 */
2174
2175 #ifndef _WIN32
2176
2177 typedef struct {
2178 int fd_in, fd_out;
2179 int max_size;
2180 } FDCharDriver;
2181
2182 #define STDIO_MAX_CLIENTS 1
2183 static int stdio_nb_clients = 0;
2184
2185 static int fd_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
2186 {
2187 FDCharDriver *s = chr->opaque;
2188 return unix_write(s->fd_out, buf, len);
2189 }
2190
2191 static int fd_chr_read_poll(void *opaque)
2192 {
2193 CharDriverState *chr = opaque;
2194 FDCharDriver *s = chr->opaque;
2195
2196 s->max_size = qemu_chr_can_read(chr);
2197 return s->max_size;
2198 }
2199
2200 static void fd_chr_read(void *opaque)
2201 {
2202 CharDriverState *chr = opaque;
2203 FDCharDriver *s = chr->opaque;
2204 int size, len;
2205 uint8_t buf[1024];
2206
2207 len = sizeof(buf);
2208 if (len > s->max_size)
2209 len = s->max_size;
2210 if (len == 0)
2211 return;
2212 size = read(s->fd_in, buf, len);
2213 if (size == 0) {
2214 /* FD has been closed. Remove it from the active list. */
2215 qemu_set_fd_handler2(s->fd_in, NULL, NULL, NULL, NULL);
2216 return;
2217 }
2218 if (size > 0) {
2219 qemu_chr_read(chr, buf, size);
2220 }
2221 }
2222
2223 static void fd_chr_update_read_handler(CharDriverState *chr)
2224 {
2225 FDCharDriver *s = chr->opaque;
2226
2227 if (s->fd_in >= 0) {
2228 if (nographic && s->fd_in == 0) {
2229 } else {
2230 qemu_set_fd_handler2(s->fd_in, fd_chr_read_poll,
2231 fd_chr_read, NULL, chr);
2232 }
2233 }
2234 }
2235
2236 static void fd_chr_close(struct CharDriverState *chr)
2237 {
2238 FDCharDriver *s = chr->opaque;
2239
2240 if (s->fd_in >= 0) {
2241 if (nographic && s->fd_in == 0) {
2242 } else {
2243 qemu_set_fd_handler2(s->fd_in, NULL, NULL, NULL, NULL);
2244 }
2245 }
2246
2247 qemu_free(s);
2248 }
2249
2250 /* open a character device to a unix fd */
2251 static CharDriverState *qemu_chr_open_fd(int fd_in, int fd_out)
2252 {
2253 CharDriverState *chr;
2254 FDCharDriver *s;
2255
2256 chr = qemu_mallocz(sizeof(CharDriverState));
2257 if (!chr)
2258 return NULL;
2259 s = qemu_mallocz(sizeof(FDCharDriver));
2260 if (!s) {
2261 free(chr);
2262 return NULL;
2263 }
2264 s->fd_in = fd_in;
2265 s->fd_out = fd_out;
2266 chr->opaque = s;
2267 chr->chr_write = fd_chr_write;
2268 chr->chr_update_read_handler = fd_chr_update_read_handler;
2269 chr->chr_close = fd_chr_close;
2270
2271 qemu_chr_reset(chr);
2272
2273 return chr;
2274 }
2275
2276 static CharDriverState *qemu_chr_open_file_out(const char *file_out)
2277 {
2278 int fd_out;
2279
2280 TFR(fd_out = open(file_out, O_WRONLY | O_TRUNC | O_CREAT | O_BINARY, 0666));
2281 if (fd_out < 0)
2282 return NULL;
2283 return qemu_chr_open_fd(-1, fd_out);
2284 }
2285
2286 static CharDriverState *qemu_chr_open_pipe(const char *filename)
2287 {
2288 int fd_in, fd_out;
2289 char filename_in[256], filename_out[256];
2290
2291 snprintf(filename_in, 256, "%s.in", filename);
2292 snprintf(filename_out, 256, "%s.out", filename);
2293 TFR(fd_in = open(filename_in, O_RDWR | O_BINARY));
2294 TFR(fd_out = open(filename_out, O_RDWR | O_BINARY));
2295 if (fd_in < 0 || fd_out < 0) {
2296 if (fd_in >= 0)
2297 close(fd_in);
2298 if (fd_out >= 0)
2299 close(fd_out);
2300 TFR(fd_in = fd_out = open(filename, O_RDWR | O_BINARY));
2301 if (fd_in < 0)
2302 return NULL;
2303 }
2304 return qemu_chr_open_fd(fd_in, fd_out);
2305 }
2306
2307
2308 /* for STDIO, we handle the case where several clients use it
2309 (nographic mode) */
2310
2311 #define TERM_FIFO_MAX_SIZE 1
2312
2313 static uint8_t term_fifo[TERM_FIFO_MAX_SIZE];
2314 static int term_fifo_size;
2315
2316 static int stdio_read_poll(void *opaque)
2317 {
2318 CharDriverState *chr = opaque;
2319
2320 /* try to flush the queue if needed */
2321 if (term_fifo_size != 0 && qemu_chr_can_read(chr) > 0) {
2322 qemu_chr_read(chr, term_fifo, 1);
2323 term_fifo_size = 0;
2324 }
2325 /* see if we can absorb more chars */
2326 if (term_fifo_size == 0)
2327 return 1;
2328 else
2329 return 0;
2330 }
2331
2332 static void stdio_read(void *opaque)
2333 {
2334 int size;
2335 uint8_t buf[1];
2336 CharDriverState *chr = opaque;
2337
2338 size = read(0, buf, 1);
2339 if (size == 0) {
2340 /* stdin has been closed. Remove it from the active list. */
2341 qemu_set_fd_handler2(0, NULL, NULL, NULL, NULL);
2342 return;
2343 }
2344 if (size > 0) {
2345 if (qemu_chr_can_read(chr) > 0) {
2346 qemu_chr_read(chr, buf, 1);
2347 } else if (term_fifo_size == 0) {
2348 term_fifo[term_fifo_size++] = buf[0];
2349 }
2350 }
2351 }
2352
2353 /* init terminal so that we can grab keys */
2354 static struct termios oldtty;
2355 static int old_fd0_flags;
2356 static int term_atexit_done;
2357
2358 static void term_exit(void)
2359 {
2360 tcsetattr (0, TCSANOW, &oldtty);
2361 fcntl(0, F_SETFL, old_fd0_flags);
2362 }
2363
2364 static void term_init(void)
2365 {
2366 struct termios tty;
2367
2368 tcgetattr (0, &tty);
2369 oldtty = tty;
2370 old_fd0_flags = fcntl(0, F_GETFL);
2371
2372 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
2373 |INLCR|IGNCR|ICRNL|IXON);
2374 tty.c_oflag |= OPOST;
2375 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
2376 /* if graphical mode, we allow Ctrl-C handling */
2377 if (nographic)
2378 tty.c_lflag &= ~ISIG;
2379 tty.c_cflag &= ~(CSIZE|PARENB);
2380 tty.c_cflag |= CS8;
2381 tty.c_cc[VMIN] = 1;
2382 tty.c_cc[VTIME] = 0;
2383
2384 tcsetattr (0, TCSANOW, &tty);
2385
2386 if (!term_atexit_done++)
2387 atexit(term_exit);
2388
2389 fcntl(0, F_SETFL, O_NONBLOCK);
2390 }
2391
2392 static void qemu_chr_close_stdio(struct CharDriverState *chr)
2393 {
2394 term_exit();
2395 stdio_nb_clients--;
2396 qemu_set_fd_handler2(0, NULL, NULL, NULL, NULL);
2397 fd_chr_close(chr);
2398 }
2399
2400 static CharDriverState *qemu_chr_open_stdio(void)
2401 {
2402 CharDriverState *chr;
2403
2404 if (stdio_nb_clients >= STDIO_MAX_CLIENTS)
2405 return NULL;
2406 chr = qemu_chr_open_fd(0, 1);
2407 chr->chr_close = qemu_chr_close_stdio;
2408 qemu_set_fd_handler2(0, stdio_read_poll, stdio_read, NULL, chr);
2409 stdio_nb_clients++;
2410 term_init();
2411
2412 return chr;
2413 }
2414
2415 #ifdef __sun__
2416 /* Once Solaris has openpty(), this is going to be removed. */
2417 int openpty(int *amaster, int *aslave, char *name,
2418 struct termios *termp, struct winsize *winp)
2419 {
2420 const char *slave;
2421 int mfd = -1, sfd = -1;
2422
2423 *amaster = *aslave = -1;
2424
2425 mfd = open("/dev/ptmx", O_RDWR | O_NOCTTY);
2426 if (mfd < 0)
2427 goto err;
2428
2429 if (grantpt(mfd) == -1 || unlockpt(mfd) == -1)
2430 goto err;
2431
2432 if ((slave = ptsname(mfd)) == NULL)
2433 goto err;
2434
2435 if ((sfd = open(slave, O_RDONLY | O_NOCTTY)) == -1)
2436 goto err;
2437
2438 if (ioctl(sfd, I_PUSH, "ptem") == -1 ||
2439 (termp != NULL && tcgetattr(sfd, termp) < 0))
2440 goto err;
2441
2442 if (amaster)
2443 *amaster = mfd;
2444 if (aslave)
2445 *aslave = sfd;
2446 if (winp)
2447 ioctl(sfd, TIOCSWINSZ, winp);
2448
2449 return 0;
2450
2451 err:
2452 if (sfd != -1)
2453 close(sfd);
2454 close(mfd);
2455 return -1;
2456 }
2457
2458 void cfmakeraw (struct termios *termios_p)
2459 {
2460 termios_p->c_iflag &=
2461 ~(IGNBRK|BRKINT|PARMRK|ISTRIP|INLCR|IGNCR|ICRNL|IXON);
2462 termios_p->c_oflag &= ~OPOST;
2463 termios_p->c_lflag &= ~(ECHO|ECHONL|ICANON|ISIG|IEXTEN);
2464 termios_p->c_cflag &= ~(CSIZE|PARENB);
2465 termios_p->c_cflag |= CS8;
2466
2467 termios_p->c_cc[VMIN] = 0;
2468 termios_p->c_cc[VTIME] = 0;
2469 }
2470 #endif
2471
2472 #if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
2473 || defined(__NetBSD__) || defined(__OpenBSD__)
2474
2475 typedef struct {
2476 int fd;
2477 int connected;
2478 int polling;
2479 int read_bytes;
2480 QEMUTimer *timer;
2481 } PtyCharDriver;
2482
2483 static void pty_chr_update_read_handler(CharDriverState *chr);
2484 static void pty_chr_state(CharDriverState *chr, int connected);
2485
2486 static int pty_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
2487 {
2488 PtyCharDriver *s = chr->opaque;
2489
2490 if (!s->connected) {
2491 /* guest sends data, check for (re-)connect */
2492 pty_chr_update_read_handler(chr);
2493 return 0;
2494 }
2495 return unix_write(s->fd, buf, len);
2496 }
2497
2498 static int pty_chr_read_poll(void *opaque)
2499 {
2500 CharDriverState *chr = opaque;
2501 PtyCharDriver *s = chr->opaque;
2502
2503 s->read_bytes = qemu_chr_can_read(chr);
2504 return s->read_bytes;
2505 }
2506
2507 static void pty_chr_read(void *opaque)
2508 {
2509 CharDriverState *chr = opaque;
2510 PtyCharDriver *s = chr->opaque;
2511 int size, len;
2512 uint8_t buf[1024];
2513
2514 len = sizeof(buf);
2515 if (len > s->read_bytes)
2516 len = s->read_bytes;
2517 if (len == 0)
2518 return;
2519 size = read(s->fd, buf, len);
2520 if ((size == -1 && errno == EIO) ||
2521 (size == 0)) {
2522 pty_chr_state(chr, 0);
2523 return;
2524 }
2525 if (size > 0) {
2526 pty_chr_state(chr, 1);
2527 qemu_chr_read(chr, buf, size);
2528 }
2529 }
2530
2531 static void pty_chr_update_read_handler(CharDriverState *chr)
2532 {
2533 PtyCharDriver *s = chr->opaque;
2534
2535 qemu_set_fd_handler2(s->fd, pty_chr_read_poll,
2536 pty_chr_read, NULL, chr);
2537 s->polling = 1;
2538 /*
2539 * Short timeout here: just need wait long enougth that qemu makes
2540 * it through the poll loop once. When reconnected we want a
2541 * short timeout so we notice it almost instantly. Otherwise
2542 * read() gives us -EIO instantly, making pty_chr_state() reset the
2543 * timeout to the normal (much longer) poll interval before the
2544 * timer triggers.
2545 */
2546 qemu_mod_timer(s->timer, qemu_get_clock(rt_clock) + 10);
2547 }
2548
2549 static void pty_chr_state(CharDriverState *chr, int connected)
2550 {
2551 PtyCharDriver *s = chr->opaque;
2552
2553 if (!connected) {
2554 qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL);
2555 s->connected = 0;
2556 s->polling = 0;
2557 /* (re-)connect poll interval for idle guests: once per second.
2558 * We check more frequently in case the guests sends data to
2559 * the virtual device linked to our pty. */
2560 qemu_mod_timer(s->timer, qemu_get_clock(rt_clock) + 1000);
2561 } else {
2562 if (!s->connected)
2563 qemu_chr_reset(chr);
2564 s->connected = 1;
2565 }
2566 }
2567
2568 static void pty_chr_timer(void *opaque)
2569 {
2570 struct CharDriverState *chr = opaque;
2571 PtyCharDriver *s = chr->opaque;
2572
2573 if (s->connected)
2574 return;
2575 if (s->polling) {
2576 /* If we arrive here without polling being cleared due
2577 * read returning -EIO, then we are (re-)connected */
2578 pty_chr_state(chr, 1);
2579 return;
2580 }
2581
2582 /* Next poll ... */
2583 pty_chr_update_read_handler(chr);
2584 }
2585
2586 static void pty_chr_close(struct CharDriverState *chr)
2587 {
2588 PtyCharDriver *s = chr->opaque;
2589
2590 qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL);
2591 close(s->fd);
2592 qemu_free(s);
2593 }
2594
2595 static CharDriverState *qemu_chr_open_pty(void)
2596 {
2597 CharDriverState *chr;
2598 PtyCharDriver *s;
2599 struct termios tty;
2600 int slave_fd;
2601 #if defined(__OpenBSD__)
2602 char pty_name[PATH_MAX];
2603 #define q_ptsname(x) pty_name
2604 #else
2605 char *pty_name = NULL;
2606 #define q_ptsname(x) ptsname(x)
2607 #endif
2608
2609 chr = qemu_mallocz(sizeof(CharDriverState));
2610 if (!chr)
2611 return NULL;
2612 s = qemu_mallocz(sizeof(PtyCharDriver));
2613 if (!s) {
2614 qemu_free(chr);
2615 return NULL;
2616 }
2617
2618 if (openpty(&s->fd, &slave_fd, pty_name, NULL, NULL) < 0) {
2619 return NULL;
2620 }
2621
2622 /* Set raw attributes on the pty. */
2623 cfmakeraw(&tty);
2624 tcsetattr(slave_fd, TCSAFLUSH, &tty);
2625 close(slave_fd);
2626
2627 fprintf(stderr, "char device redirected to %s\n", q_ptsname(s->fd));
2628
2629 chr->opaque = s;
2630 chr->chr_write = pty_chr_write;
2631 chr->chr_update_read_handler = pty_chr_update_read_handler;
2632 chr->chr_close = pty_chr_close;
2633
2634 s->timer = qemu_new_timer(rt_clock, pty_chr_timer, chr);
2635
2636 return chr;
2637 }
2638
2639 static void tty_serial_init(int fd, int speed,
2640 int parity, int data_bits, int stop_bits)
2641 {
2642 struct termios tty;
2643 speed_t spd;
2644
2645 #if 0
2646 printf("tty_serial_init: speed=%d parity=%c data=%d stop=%d\n",
2647 speed, parity, data_bits, stop_bits);
2648 #endif
2649 tcgetattr (fd, &tty);
2650
2651 #define MARGIN 1.1
2652 if (speed <= 50 * MARGIN)
2653 spd = B50;
2654 else if (speed <= 75 * MARGIN)
2655 spd = B75;
2656 else if (speed <= 300 * MARGIN)
2657 spd = B300;
2658 else if (speed <= 600 * MARGIN)
2659 spd = B600;
2660 else if (speed <= 1200 * MARGIN)
2661 spd = B1200;
2662 else if (speed <= 2400 * MARGIN)
2663 spd = B2400;
2664 else if (speed <= 4800 * MARGIN)
2665 spd = B4800;
2666 else if (speed <= 9600 * MARGIN)
2667 spd = B9600;
2668 else if (speed <= 19200 * MARGIN)
2669 spd = B19200;
2670 else if (speed <= 38400 * MARGIN)
2671 spd = B38400;
2672 else if (speed <= 57600 * MARGIN)
2673 spd = B57600;
2674 else if (speed <= 115200 * MARGIN)
2675 spd = B115200;
2676 else
2677 spd = B115200;
2678
2679 cfsetispeed(&tty, spd);
2680 cfsetospeed(&tty, spd);
2681
2682 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
2683 |INLCR|IGNCR|ICRNL|IXON);
2684 tty.c_oflag |= OPOST;
2685 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN|ISIG);
2686 tty.c_cflag &= ~(CSIZE|PARENB|PARODD|CRTSCTS|CSTOPB);
2687 switch(data_bits) {
2688 default:
2689 case 8:
2690 tty.c_cflag |= CS8;
2691 break;
2692 case 7:
2693 tty.c_cflag |= CS7;
2694 break;
2695 case 6:
2696 tty.c_cflag |= CS6;
2697 break;
2698 case 5:
2699 tty.c_cflag |= CS5;
2700 break;
2701 }
2702 switch(parity) {
2703 default:
2704 case 'N':
2705 break;
2706 case 'E':
2707 tty.c_cflag |= PARENB;
2708 break;
2709 case 'O':
2710 tty.c_cflag |= PARENB | PARODD;
2711 break;
2712 }
2713 if (stop_bits == 2)
2714 tty.c_cflag |= CSTOPB;
2715
2716 tcsetattr (fd, TCSANOW, &tty);
2717 }
2718
2719 static int tty_serial_ioctl(CharDriverState *chr, int cmd, void *arg)
2720 {
2721 FDCharDriver *s = chr->opaque;
2722
2723 switch(cmd) {
2724 case CHR_IOCTL_SERIAL_SET_PARAMS:
2725 {
2726 QEMUSerialSetParams *ssp = arg;
2727 tty_serial_init(s->fd_in, ssp->speed, ssp->parity,
2728 ssp->data_bits, ssp->stop_bits);
2729 }
2730 break;
2731 case CHR_IOCTL_SERIAL_SET_BREAK:
2732 {
2733 int enable = *(int *)arg;
2734 if (enable)
2735 tcsendbreak(s->fd_in, 1);
2736 }
2737 break;
2738 case CHR_IOCTL_SERIAL_GET_TIOCM:
2739 {
2740 int sarg = 0;
2741 int *targ = (int *)arg;
2742 ioctl(s->fd_in, TIOCMGET, &sarg);
2743 *targ = 0;
2744 if (sarg | TIOCM_CTS)
2745 *targ |= CHR_TIOCM_CTS;
2746 if (sarg | TIOCM_CAR)
2747 *targ |= CHR_TIOCM_CAR;
2748 if (sarg | TIOCM_DSR)
2749 *targ |= CHR_TIOCM_DSR;
2750 if (sarg | TIOCM_RI)
2751 *targ |= CHR_TIOCM_RI;
2752 if (sarg | TIOCM_DTR)
2753 *targ |= CHR_TIOCM_DTR;
2754 if (sarg | TIOCM_RTS)
2755 *targ |= CHR_TIOCM_RTS;
2756 }
2757 break;
2758 case CHR_IOCTL_SERIAL_SET_TIOCM:
2759 {
2760 int sarg = *(int *)arg;
2761 int targ = 0;
2762 if (sarg | CHR_TIOCM_DTR)
2763 targ |= TIOCM_DTR;
2764 if (sarg | CHR_TIOCM_RTS)
2765 targ |= TIOCM_RTS;
2766 ioctl(s->fd_in, TIOCMSET, &targ);
2767 }
2768 break;
2769 default:
2770 return -ENOTSUP;
2771 }
2772 return 0;
2773 }
2774
2775 static CharDriverState *qemu_chr_open_tty(const char *filename)
2776 {
2777 CharDriverState *chr;
2778 int fd;
2779
2780 TFR(fd = open(filename, O_RDWR | O_NONBLOCK));
2781 tty_serial_init(fd, 115200, 'N', 8, 1);
2782 chr = qemu_chr_open_fd(fd, fd);
2783 if (!chr) {
2784 close(fd);
2785 return NULL;
2786 }
2787 chr->chr_ioctl = tty_serial_ioctl;
2788 qemu_chr_reset(chr);
2789 return chr;
2790 }
2791 #else /* ! __linux__ && ! __sun__ */
2792 static CharDriverState *qemu_chr_open_pty(void)
2793 {
2794 return NULL;
2795 }
2796 #endif /* __linux__ || __sun__ */
2797
2798 #if defined(__linux__)
2799 typedef struct {
2800 int fd;
2801 int mode;
2802 } ParallelCharDriver;
2803
2804 static int pp_hw_mode(ParallelCharDriver *s, uint16_t mode)
2805 {
2806 if (s->mode != mode) {
2807 int m = mode;
2808 if (ioctl(s->fd, PPSETMODE, &m) < 0)
2809 return 0;
2810 s->mode = mode;
2811 }
2812 return 1;
2813 }
2814
2815 static int pp_ioctl(CharDriverState *chr, int cmd, void *arg)
2816 {
2817 ParallelCharDriver *drv = chr->opaque;
2818 int fd = drv->fd;
2819 uint8_t b;
2820
2821 switch(cmd) {
2822 case CHR_IOCTL_PP_READ_DATA:
2823 if (ioctl(fd, PPRDATA, &b) < 0)
2824 return -ENOTSUP;
2825 *(uint8_t *)arg = b;
2826 break;
2827 case CHR_IOCTL_PP_WRITE_DATA:
2828 b = *(uint8_t *)arg;
2829 if (ioctl(fd, PPWDATA, &b) < 0)
2830 return -ENOTSUP;
2831 break;
2832 case CHR_IOCTL_PP_READ_CONTROL:
2833 if (ioctl(fd, PPRCONTROL, &b) < 0)
2834 return -ENOTSUP;
2835 /* Linux gives only the lowest bits, and no way to know data
2836 direction! For better compatibility set the fixed upper
2837 bits. */
2838 *(uint8_t *)arg = b | 0xc0;
2839 break;
2840 case CHR_IOCTL_PP_WRITE_CONTROL:
2841 b = *(uint8_t *)arg;
2842 if (ioctl(fd, PPWCONTROL, &b) < 0)
2843 return -ENOTSUP;
2844 break;
2845 case CHR_IOCTL_PP_READ_STATUS:
2846 if (ioctl(fd, PPRSTATUS, &b) < 0)
2847 return -ENOTSUP;
2848 *(uint8_t *)arg = b;
2849 break;
2850 case CHR_IOCTL_PP_DATA_DIR:
2851 if (ioctl(fd, PPDATADIR, (int *)arg) < 0)
2852 return -ENOTSUP;
2853 break;
2854 case CHR_IOCTL_PP_EPP_READ_ADDR:
2855 if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
2856 struct ParallelIOArg *parg = arg;
2857 int n = read(fd, parg->buffer, parg->count);
2858 if (n != parg->count) {
2859 return -EIO;
2860 }
2861 }
2862 break;
2863 case CHR_IOCTL_PP_EPP_READ:
2864 if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
2865 struct ParallelIOArg *parg = arg;
2866 int n = read(fd, parg->buffer, parg->count);
2867 if (n != parg->count) {
2868 return -EIO;
2869 }
2870 }
2871 break;
2872 case CHR_IOCTL_PP_EPP_WRITE_ADDR:
2873 if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
2874 struct ParallelIOArg *parg = arg;
2875 int n = write(fd, parg->buffer, parg->count);
2876 if (n != parg->count) {
2877 return -EIO;
2878 }
2879 }
2880 break;
2881 case CHR_IOCTL_PP_EPP_WRITE:
2882 if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
2883 struct ParallelIOArg *parg = arg;
2884 int n = write(fd, parg->buffer, parg->count);
2885 if (n != parg->count) {
2886 return -EIO;
2887 }
2888 }
2889 break;
2890 default:
2891 return -ENOTSUP;
2892 }
2893 return 0;
2894 }
2895
2896 static void pp_close(CharDriverState *chr)
2897 {
2898 ParallelCharDriver *drv = chr->opaque;
2899 int fd = drv->fd;
2900
2901 pp_hw_mode(drv, IEEE1284_MODE_COMPAT);
2902 ioctl(fd, PPRELEASE);
2903 close(fd);
2904 qemu_free(drv);
2905 }
2906
2907 static CharDriverState *qemu_chr_open_pp(const char *filename)
2908 {
2909 CharDriverState *chr;
2910 ParallelCharDriver *drv;
2911 int fd;
2912
2913 TFR(fd = open(filename, O_RDWR));
2914 if (fd < 0)
2915 return NULL;
2916
2917 if (ioctl(fd, PPCLAIM) < 0) {
2918 close(fd);
2919 return NULL;
2920 }
2921
2922 drv = qemu_mallocz(sizeof(ParallelCharDriver));
2923 if (!drv) {
2924 close(fd);
2925 return NULL;
2926 }
2927 drv->fd = fd;
2928 drv->mode = IEEE1284_MODE_COMPAT;
2929
2930 chr = qemu_mallocz(sizeof(CharDriverState));
2931 if (!chr) {
2932 qemu_free(drv);
2933 close(fd);
2934 return NULL;
2935 }
2936 chr->chr_write = null_chr_write;
2937 chr->chr_ioctl = pp_ioctl;
2938 chr->chr_close = pp_close;
2939 chr->opaque = drv;
2940
2941 qemu_chr_reset(chr);
2942
2943 return chr;
2944 }
2945 #endif /* __linux__ */
2946
2947 #else /* _WIN32 */
2948
2949 typedef struct {
2950 int max_size;
2951 HANDLE hcom, hrecv, hsend;
2952 OVERLAPPED orecv, osend;
2953 BOOL fpipe;
2954 DWORD len;
2955 } WinCharState;
2956
2957 #define NSENDBUF 2048
2958 #define NRECVBUF 2048
2959 #define MAXCONNECT 1
2960 #define NTIMEOUT 5000
2961
2962 static int win_chr_poll(void *opaque);
2963 static int win_chr_pipe_poll(void *opaque);
2964
2965 static void win_chr_close(CharDriverState *chr)
2966 {
2967 WinCharState *s = chr->opaque;
2968
2969 if (s->hsend) {
2970 CloseHandle(s->hsend);
2971 s->hsend = NULL;
2972 }
2973 if (s->hrecv) {
2974 CloseHandle(s->hrecv);
2975 s->hrecv = NULL;
2976 }
2977 if (s->hcom) {
2978 CloseHandle(s->hcom);
2979 s->hcom = NULL;
2980 }
2981 if (s->fpipe)
2982 qemu_del_polling_cb(win_chr_pipe_poll, chr);
2983 else
2984 qemu_del_polling_cb(win_chr_poll, chr);
2985 }
2986
2987 static int win_chr_init(CharDriverState *chr, const char *filename)
2988 {
2989 WinCharState *s = chr->opaque;
2990 COMMCONFIG comcfg;
2991 COMMTIMEOUTS cto = { 0, 0, 0, 0, 0};
2992 COMSTAT comstat;
2993 DWORD size;
2994 DWORD err;
2995
2996 s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL);
2997 if (!s->hsend) {
2998 fprintf(stderr, "Failed CreateEvent\n");
2999 goto fail;
3000 }
3001 s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL);
3002 if (!s->hrecv) {
3003 fprintf(stderr, "Failed CreateEvent\n");
3004 goto fail;
3005 }
3006
3007 s->hcom = CreateFile(filename, GENERIC_READ|GENERIC_WRITE, 0, NULL,
3008 OPEN_EXISTING, FILE_FLAG_OVERLAPPED, 0);
3009 if (s->hcom == INVALID_HANDLE_VALUE) {
3010 fprintf(stderr, "Failed CreateFile (%lu)\n", GetLastError());
3011 s->hcom = NULL;
3012 goto fail;
3013 }
3014
3015 if (!SetupComm(s->hcom, NRECVBUF, NSENDBUF)) {
3016 fprintf(stderr, "Failed SetupComm\n");
3017 goto fail;
3018 }
3019
3020 ZeroMemory(&comcfg, sizeof(COMMCONFIG));
3021 size = sizeof(COMMCONFIG);
3022 GetDefaultCommConfig(filename, &comcfg, &size);
3023 comcfg.dcb.DCBlength = sizeof(DCB);
3024 CommConfigDialog(filename, NULL, &comcfg);
3025
3026 if (!SetCommState(s->hcom, &comcfg.dcb)) {
3027 fprintf(stderr, "Failed SetCommState\n");
3028 goto fail;
3029 }
3030
3031 if (!SetCommMask(s->hcom, EV_ERR)) {
3032 fprintf(stderr, "Failed SetCommMask\n");
3033 goto fail;
3034 }
3035
3036 cto.ReadIntervalTimeout = MAXDWORD;
3037 if (!SetCommTimeouts(s->hcom, &cto)) {
3038 fprintf(stderr, "Failed SetCommTimeouts\n");
3039 goto fail;
3040 }
3041
3042 if (!ClearCommError(s->hcom, &err, &comstat)) {
3043 fprintf(stderr, "Failed ClearCommError\n");
3044 goto fail;
3045 }
3046 qemu_add_polling_cb(win_chr_poll, chr);
3047 return 0;
3048
3049 fail:
3050 win_chr_close(chr);
3051 return -1;
3052 }
3053
3054 static int win_chr_write(CharDriverState *chr, const uint8_t *buf, int len1)
3055 {
3056 WinCharState *s = chr->opaque;
3057 DWORD len, ret, size, err;
3058
3059 len = len1;
3060 ZeroMemory(&s->osend, sizeof(s->osend));
3061 s->osend.hEvent = s->hsend;
3062 while (len > 0) {
3063 if (s->hsend)
3064 ret = WriteFile(s->hcom, buf, len, &size, &s->osend);
3065 else
3066 ret = WriteFile(s->hcom, buf, len, &size, NULL);
3067 if (!ret) {
3068 err = GetLastError();
3069 if (err == ERROR_IO_PENDING) {
3070 ret = GetOverlappedResult(s->hcom, &s->osend, &size, TRUE);
3071 if (ret) {
3072 buf += size;
3073 len -= size;
3074 } else {
3075 break;
3076 }
3077 } else {
3078 break;
3079 }
3080 } else {
3081 buf += size;
3082 len -= size;
3083 }
3084 }
3085 return len1 - len;
3086 }
3087
3088 static int win_chr_read_poll(CharDriverState *chr)
3089 {
3090 WinCharState *s = chr->opaque;
3091
3092 s->max_size = qemu_chr_can_read(chr);
3093 return s->max_size;
3094 }
3095
3096 static void win_chr_readfile(CharDriverState *chr)
3097 {
3098 WinCharState *s = chr->opaque;
3099 int ret, err;
3100 uint8_t buf[1024];
3101 DWORD size;
3102
3103 ZeroMemory(&s->orecv, sizeof(s->orecv));
3104 s->orecv.hEvent = s->hrecv;
3105 ret = ReadFile(s->hcom, buf, s->len, &size, &s->orecv);
3106 if (!ret) {
3107 err = GetLastError();
3108 if (err == ERROR_IO_PENDING) {
3109 ret = GetOverlappedResult(s->hcom, &s->orecv, &size, TRUE);
3110 }
3111 }
3112
3113 if (size > 0) {
3114 qemu_chr_read(chr, buf, size);
3115 }
3116 }
3117
3118 static void win_chr_read(CharDriverState *chr)
3119 {
3120 WinCharState *s = chr->opaque;
3121
3122 if (s->len > s->max_size)
3123 s->len = s->max_size;
3124 if (s->len == 0)
3125 return;
3126
3127 win_chr_readfile(chr);
3128 }
3129
3130 static int win_chr_poll(void *opaque)
3131 {
3132 CharDriverState *chr = opaque;
3133 WinCharState *s = chr->opaque;
3134 COMSTAT status;
3135 DWORD comerr;
3136
3137 ClearCommError(s->hcom, &comerr, &status);
3138 if (status.cbInQue > 0) {
3139 s->len = status.cbInQue;
3140 win_chr_read_poll(chr);
3141 win_chr_read(chr);
3142 return 1;
3143 }
3144 return 0;
3145 }
3146
3147 static CharDriverState *qemu_chr_open_win(const char *filename)
3148 {
3149 CharDriverState *chr;
3150 WinCharState *s;
3151
3152 chr = qemu_mallocz(sizeof(CharDriverState));
3153 if (!chr)
3154 return NULL;
3155 s = qemu_mallocz(sizeof(WinCharState));
3156 if (!s) {
3157 free(chr);
3158 return NULL;
3159 }
3160 chr->opaque = s;
3161 chr->chr_write = win_chr_write;
3162 chr->chr_close = win_chr_close;
3163
3164 if (win_chr_init(chr, filename) < 0) {
3165 free(s);
3166 free(chr);
3167 return NULL;
3168 }
3169 qemu_chr_reset(chr);
3170 return chr;
3171 }
3172
3173 static int win_chr_pipe_poll(void *opaque)
3174 {
3175 CharDriverState *chr = opaque;
3176 WinCharState *s = chr->opaque;
3177 DWORD size;
3178
3179 PeekNamedPipe(s->hcom, NULL, 0, NULL, &size, NULL);
3180 if (size > 0) {
3181 s->len = size;
3182 win_chr_read_poll(chr);
3183 win_chr_read(chr);
3184 return 1;
3185 }
3186 return 0;
3187 }
3188
3189 static int win_chr_pipe_init(CharDriverState *chr, const char *filename)
3190 {
3191 WinCharState *s = chr->opaque;
3192 OVERLAPPED ov;
3193 int ret;
3194 DWORD size;
3195 char openname[256];
3196
3197 s->fpipe = TRUE;
3198
3199 s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL);
3200 if (!s->hsend) {
3201 fprintf(stderr, "Failed CreateEvent\n");
3202 goto fail;
3203 }
3204 s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL);
3205 if (!s->hrecv) {
3206 fprintf(stderr, "Failed CreateEvent\n");
3207 goto fail;
3208 }
3209
3210 snprintf(openname, sizeof(openname), "\\\\.\\pipe\\%s", filename);
3211 s->hcom = CreateNamedPipe(openname, PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED,
3212 PIPE_TYPE_BYTE | PIPE_READMODE_BYTE |
3213 PIPE_WAIT,
3214 MAXCONNECT, NSENDBUF, NRECVBUF, NTIMEOUT, NULL);
3215 if (s->hcom == INVALID_HANDLE_VALUE) {
3216 fprintf(stderr, "Failed CreateNamedPipe (%lu)\n", GetLastError());
3217 s->hcom = NULL;
3218 goto fail;
3219 }
3220
3221 ZeroMemory(&ov, sizeof(ov));
3222 ov.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
3223 ret = ConnectNamedPipe(s->hcom, &ov);
3224 if (ret) {
3225 fprintf(stderr, "Failed ConnectNamedPipe\n");
3226 goto fail;
3227 }
3228
3229 ret = GetOverlappedResult(s->hcom, &ov, &size, TRUE);
3230 if (!ret) {
3231 fprintf(stderr, "Failed GetOverlappedResult\n");
3232 if (ov.hEvent) {
3233 CloseHandle(ov.hEvent);
3234 ov.hEvent = NULL;
3235 }
3236 goto fail;
3237 }
3238
3239 if (ov.hEvent) {
3240 CloseHandle(ov.hEvent);
3241 ov.hEvent = NULL;
3242 }
3243 qemu_add_polling_cb(win_chr_pipe_poll, chr);
3244 return 0;
3245
3246 fail:
3247 win_chr_close(chr);
3248 return -1;
3249 }
3250
3251
3252 static CharDriverState *qemu_chr_open_win_pipe(const char *filename)
3253 {
3254 CharDriverState *chr;
3255 WinCharState *s;
3256
3257 chr = qemu_mallocz(sizeof(CharDriverState));
3258 if (!chr)
3259 return NULL;
3260 s = qemu_mallocz(sizeof(WinCharState));
3261 if (!s) {
3262 free(chr);
3263 return NULL;
3264 }
3265 chr->opaque = s;
3266 chr->chr_write = win_chr_write;
3267 chr->chr_close = win_chr_close;
3268
3269 if (win_chr_pipe_init(chr, filename) < 0) {
3270 free(s);
3271 free(chr);
3272 return NULL;
3273 }
3274 qemu_chr_reset(chr);
3275 return chr;
3276 }
3277
3278 static CharDriverState *qemu_chr_open_win_file(HANDLE fd_out)
3279 {
3280 CharDriverState *chr;
3281 WinCharState *s;
3282
3283 chr = qemu_mallocz(sizeof(CharDriverState));
3284 if (!chr)
3285 return NULL;
3286 s = qemu_mallocz(sizeof(WinCharState));
3287 if (!s) {
3288 free(chr);
3289 return NULL;
3290 }
3291 s->hcom = fd_out;
3292 chr->opaque = s;
3293 chr->chr_write = win_chr_write;
3294 qemu_chr_reset(chr);
3295 return chr;
3296 }
3297
3298 static CharDriverState *qemu_chr_open_win_con(const char *filename)
3299 {
3300 return qemu_chr_open_win_file(GetStdHandle(STD_OUTPUT_HANDLE));
3301 }
3302
3303 static CharDriverState *qemu_chr_open_win_file_out(const char *file_out)
3304 {
3305 HANDLE fd_out;
3306
3307 fd_out = CreateFile(file_out, GENERIC_WRITE, FILE_SHARE_READ, NULL,
3308 OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
3309 if (fd_out == INVALID_HANDLE_VALUE)
3310 return NULL;
3311
3312 return qemu_chr_open_win_file(fd_out);
3313 }
3314 #endif /* !_WIN32 */
3315
3316 /***********************************************************/
3317 /* UDP Net console */
3318
3319 typedef struct {
3320 int fd;
3321 struct sockaddr_in daddr;
3322 uint8_t buf[1024];
3323 int bufcnt;
3324 int bufptr;
3325 int max_size;
3326 } NetCharDriver;
3327
3328 static int udp_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
3329 {
3330 NetCharDriver *s = chr->opaque;
3331
3332 return sendto(s->fd, buf, len, 0,
3333 (struct sockaddr *)&s->daddr, sizeof(struct sockaddr_in));
3334 }
3335
3336 static int udp_chr_read_poll(void *opaque)
3337 {
3338 CharDriverState *chr = opaque;
3339 NetCharDriver *s = chr->opaque;
3340
3341 s->max_size = qemu_chr_can_read(chr);
3342
3343 /* If there were any stray characters in the queue process them
3344 * first
3345 */
3346 while (s->max_size > 0 && s->bufptr < s->bufcnt) {
3347 qemu_chr_read(chr, &s->buf[s->bufptr], 1);
3348 s->bufptr++;
3349 s->max_size = qemu_chr_can_read(chr);
3350 }
3351 return s->max_size;
3352 }
3353
3354 static void udp_chr_read(void *opaque)
3355 {
3356 CharDriverState *chr = opaque;
3357 NetCharDriver *s = chr->opaque;
3358
3359 if (s->max_size == 0)
3360 return;
3361 s->bufcnt = recv(s->fd, s->buf, sizeof(s->buf), 0);
3362 s->bufptr = s->bufcnt;
3363 if (s->bufcnt <= 0)
3364 return;
3365
3366 s->bufptr = 0;
3367 while (s->max_size > 0 && s->bufptr < s->bufcnt) {
3368 qemu_chr_read(chr, &s->buf[s->bufptr], 1);
3369 s->bufptr++;
3370 s->max_size = qemu_chr_can_read(chr);
3371 }
3372 }
3373
3374 static void udp_chr_update_read_handler(CharDriverState *chr)
3375 {
3376 NetCharDriver *s = chr->opaque;
3377
3378 if (s->fd >= 0) {
3379 qemu_set_fd_handler2(s->fd, udp_chr_read_poll,
3380 udp_chr_read, NULL, chr);
3381 }
3382 }
3383
3384 int parse_host_port(struct sockaddr_in *saddr, const char *str);
3385 #ifndef _WIN32
3386 static int parse_unix_path(struct sockaddr_un *uaddr, const char *str);
3387 #endif
3388 int parse_host_src_port(struct sockaddr_in *haddr,
3389 struct sockaddr_in *saddr,
3390 const char *str);
3391
3392 static CharDriverState *qemu_chr_open_udp(const char *def)
3393 {
3394 CharDriverState *chr = NULL;
3395 NetCharDriver *s = NULL;
3396 int fd = -1;
3397 struct sockaddr_in saddr;
3398
3399 chr = qemu_mallocz(sizeof(CharDriverState));
3400 if (!chr)
3401 goto return_err;
3402 s = qemu_mallocz(sizeof(NetCharDriver));
3403 if (!s)
3404 goto return_err;
3405
3406 fd = socket(PF_INET, SOCK_DGRAM, 0);
3407 if (fd < 0) {
3408 perror("socket(PF_INET, SOCK_DGRAM)");
3409 goto return_err;
3410 }
3411
3412 if (parse_host_src_port(&s->daddr, &saddr, def) < 0) {
3413 printf("Could not parse: %s\n", def);
3414 goto return_err;
3415 }
3416
3417 if (bind(fd, (struct sockaddr *)&saddr, sizeof(saddr)) < 0)
3418 {
3419 perror("bind");
3420 goto return_err;
3421 }
3422
3423 s->fd = fd;
3424 s->bufcnt = 0;
3425 s->bufptr = 0;
3426 chr->opaque = s;
3427 chr->chr_write = udp_chr_write;
3428 chr->chr_update_read_handler = udp_chr_update_read_handler;
3429 return chr;
3430
3431 return_err:
3432 if (chr)
3433 free(chr);
3434 if (s)
3435 free(s);
3436 if (fd >= 0)
3437 closesocket(fd);
3438 return NULL;
3439 }
3440
3441 /***********************************************************/
3442 /* TCP Net console */
3443
3444 typedef struct {
3445 int fd, listen_fd;
3446 int connected;
3447 int max_size;
3448 int do_telnetopt;
3449 int do_nodelay;
3450 int is_unix;
3451 } TCPCharDriver;
3452
3453 static void tcp_chr_accept(void *opaque);
3454
3455 static int tcp_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
3456 {
3457 TCPCharDriver *s = chr->opaque;
3458 if (s->connected) {
3459 return send_all(s->fd, buf, len);
3460 } else {
3461 /* XXX: indicate an error ? */
3462 return len;
3463 }
3464 }
3465
3466 static int tcp_chr_read_poll(void *opaque)
3467 {
3468 CharDriverState *chr = opaque;
3469 TCPCharDriver *s = chr->opaque;
3470 if (!s->connected)
3471 return 0;
3472 s->max_size = qemu_chr_can_read(chr);
3473 return s->max_size;
3474 }
3475
3476 #define IAC 255
3477 #define IAC_BREAK 243
3478 static void tcp_chr_process_IAC_bytes(CharDriverState *chr,
3479 TCPCharDriver *s,
3480 uint8_t *buf, int *size)
3481 {
3482 /* Handle any telnet client's basic IAC options to satisfy char by
3483 * char mode with no echo. All IAC options will be removed from
3484 * the buf and the do_telnetopt variable will be used to track the
3485 * state of the width of the IAC information.
3486 *
3487 * IAC commands come in sets of 3 bytes with the exception of the
3488 * "IAC BREAK" command and the double IAC.
3489 */
3490
3491 int i;
3492 int j = 0;
3493
3494 for (i = 0; i < *size; i++) {
3495 if (s->do_telnetopt > 1) {
3496 if ((unsigned char)buf[i] == IAC && s->do_telnetopt == 2) {
3497 /* Double IAC means send an IAC */
3498 if (j != i)
3499 buf[j] = buf[i];
3500 j++;
3501 s->do_telnetopt = 1;
3502 } else {
3503 if ((unsigned char)buf[i] == IAC_BREAK && s->do_telnetopt == 2) {
3504 /* Handle IAC break commands by sending a serial break */
3505 qemu_chr_event(chr, CHR_EVENT_BREAK);
3506 s->do_telnetopt++;
3507 }
3508 s->do_telnetopt++;
3509 }
3510 if (s->do_telnetopt >= 4) {
3511 s->do_telnetopt = 1;
3512 }
3513 } else {
3514 if ((unsigned char)buf[i] == IAC) {
3515 s->do_telnetopt = 2;
3516 } else {
3517 if (j != i)
3518 buf[j] = buf[i];
3519 j++;
3520 }
3521 }
3522 }
3523 *size = j;
3524 }
3525
3526 static void tcp_chr_read(void *opaque)
3527 {
3528 CharDriverState *chr = opaque;
3529 TCPCharDriver *s = chr->opaque;
3530 uint8_t buf[1024];
3531 int len, size;
3532
3533 if (!s->connected || s->max_size <= 0)
3534 return;
3535 len = sizeof(buf);
3536 if (len > s->max_size)
3537 len = s->max_size;
3538 size = recv(s->fd, buf, len, 0);
3539 if (size == 0) {
3540 /* connection closed */
3541 s->connected = 0;
3542 if (s->listen_fd >= 0) {
3543 qemu_set_fd_handler(s->listen_fd, tcp_chr_accept, NULL, chr);
3544 }
3545 qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
3546 closesocket(s->fd);
3547 s->fd = -1;
3548 } else if (size > 0) {
3549 if (s->do_telnetopt)
3550 tcp_chr_process_IAC_bytes(chr, s, buf, &size);
3551 if (size > 0)
3552 qemu_chr_read(chr, buf, size);
3553 }
3554 }
3555
3556 static void tcp_chr_connect(void *opaque)
3557 {
3558 CharDriverState *chr = opaque;
3559 TCPCharDriver *s = chr->opaque;
3560
3561 s->connected = 1;
3562 qemu_set_fd_handler2(s->fd, tcp_chr_read_poll,
3563 tcp_chr_read, NULL, chr);
3564 qemu_chr_reset(chr);
3565 }
3566
3567 #define IACSET(x,a,b,c) x[0] = a; x[1] = b; x[2] = c;
3568 static void tcp_chr_telnet_init(int fd)
3569 {
3570 char buf[3];
3571 /* Send the telnet negotion to put telnet in binary, no echo, single char mode */
3572 IACSET(buf, 0xff, 0xfb, 0x01); /* IAC WILL ECHO */
3573 send(fd, (char *)buf, 3, 0);
3574 IACSET(buf, 0xff, 0xfb, 0x03); /* IAC WILL Suppress go ahead */
3575 send(fd, (char *)buf, 3, 0);
3576 IACSET(buf, 0xff, 0xfb, 0x00); /* IAC WILL Binary */
3577 send(fd, (char *)buf, 3, 0);
3578 IACSET(buf, 0xff, 0xfd, 0x00); /* IAC DO Binary */
3579 send(fd, (char *)buf, 3, 0);
3580 }
3581
3582 static void socket_set_nodelay(int fd)
3583 {
3584 int val = 1;
3585 setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, (char *)&val, sizeof(val));
3586 }
3587
3588 static void tcp_chr_accept(void *opaque)
3589 {
3590 CharDriverState *chr = opaque;
3591 TCPCharDriver *s = chr->opaque;
3592 struct sockaddr_in saddr;
3593 #ifndef _WIN32
3594 struct sockaddr_un uaddr;
3595 #endif
3596 struct sockaddr *addr;
3597 socklen_t len;
3598 int fd;
3599
3600 for(;;) {
3601 #ifndef _WIN32
3602 if (s->is_unix) {
3603 len = sizeof(uaddr);
3604 addr = (struct sockaddr *)&uaddr;
3605 } else
3606 #endif
3607 {
3608 len = sizeof(saddr);
3609 addr = (struct sockaddr *)&saddr;
3610 }
3611 fd = accept(s->listen_fd, addr, &len);
3612 if (fd < 0 && errno != EINTR) {
3613 return;
3614 } else if (fd >= 0) {
3615 if (s->do_telnetopt)
3616 tcp_chr_telnet_init(fd);
3617 break;
3618 }
3619 }
3620 socket_set_nonblock(fd);
3621 if (s->do_nodelay)
3622 socket_set_nodelay(fd);
3623 s->fd = fd;
3624 qemu_set_fd_handler(s->listen_fd, NULL, NULL, NULL);
3625 tcp_chr_connect(chr);
3626 }
3627
3628 static void tcp_chr_close(CharDriverState *chr)
3629 {
3630 TCPCharDriver *s = chr->opaque;
3631 if (s->fd >= 0)
3632 closesocket(s->fd);
3633 if (s->listen_fd >= 0)
3634 closesocket(s->listen_fd);
3635 qemu_free(s);
3636 }
3637
3638 static CharDriverState *qemu_chr_open_tcp(const char *host_str,
3639 int is_telnet,
3640 int is_unix)
3641 {
3642 CharDriverState *chr = NULL;
3643 TCPCharDriver *s = NULL;
3644 int fd = -1, ret, err, val;
3645 int is_listen = 0;
3646 int is_waitconnect = 1;
3647 int do_nodelay = 0;
3648 const char *ptr;
3649 struct sockaddr_in saddr;
3650 #ifndef _WIN32
3651 struct sockaddr_un uaddr;
3652 #endif
3653 struct sockaddr *addr;
3654 socklen_t addrlen;
3655
3656 #ifndef _WIN32
3657 if (is_unix) {
3658 addr = (struct sockaddr *)&uaddr;
3659 addrlen = sizeof(uaddr);
3660 if (parse_unix_path(&uaddr, host_str) < 0)
3661 goto fail;
3662 } else
3663 #endif
3664 {
3665 addr = (struct sockaddr *)&saddr;
3666 addrlen = sizeof(saddr);
3667 if (parse_host_port(&saddr, host_str) < 0)
3668 goto fail;
3669 }
3670
3671 ptr = host_str;
3672 while((ptr = strchr(ptr,','))) {
3673 ptr++;
3674 if (!strncmp(ptr,"server",6)) {
3675 is_listen = 1;
3676 } else if (!strncmp(ptr,"nowait",6)) {
3677 is_waitconnect = 0;
3678 } else if (!strncmp(ptr,"nodelay",6)) {
3679 do_nodelay = 1;
3680 } else {
3681 printf("Unknown option: %s\n", ptr);
3682 goto fail;
3683 }
3684 }
3685 if (!is_listen)
3686 is_waitconnect = 0;
3687
3688 chr = qemu_mallocz(sizeof(CharDriverState));
3689 if (!chr)
3690 goto fail;
3691 s = qemu_mallocz(sizeof(TCPCharDriver));
3692 if (!s)
3693 goto fail;
3694
3695 #ifndef _WIN32
3696 if (is_unix)
3697 fd = socket(PF_UNIX, SOCK_STREAM, 0);
3698 else
3699 #endif
3700 fd = socket(PF_INET, SOCK_STREAM, 0);
3701
3702 if (fd < 0)
3703 goto fail;
3704
3705 if (!is_waitconnect)
3706 socket_set_nonblock(fd);
3707
3708 s->connected = 0;
3709 s->fd = -1;
3710 s->listen_fd = -1;
3711 s->is_unix = is_unix;
3712 s->do_nodelay = do_nodelay && !is_unix;
3713
3714 chr->opaque = s;
3715 chr->chr_write = tcp_chr_write;
3716 chr->chr_close = tcp_chr_close;
3717
3718 if (is_listen) {
3719 /* allow fast reuse */
3720 #ifndef _WIN32
3721 if (is_unix) {
3722 char path[109];
3723 pstrcpy(path, sizeof(path), uaddr.sun_path);
3724 unlink(path);
3725 } else
3726 #endif
3727 {
3728 val = 1;
3729 setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (const char *)&val, sizeof(val));
3730 }
3731
3732 ret = bind(fd, addr, addrlen);
3733 if (ret < 0)
3734 goto fail;
3735
3736 ret = listen(fd, 0);
3737 if (ret < 0)
3738 goto fail;
3739
3740 s->listen_fd = fd;
3741 qemu_set_fd_handler(s->listen_fd, tcp_chr_accept, NULL, chr);
3742 if (is_telnet)
3743 s->do_telnetopt = 1;
3744 } else {
3745 for(;;) {
3746 ret = connect(fd, addr, addrlen);
3747 if (ret < 0) {
3748 err = socket_error();
3749 if (err == EINTR || err == EWOULDBLOCK) {
3750 } else if (err == EINPROGRESS) {
3751 break;
3752 #ifdef _WIN32
3753 } else if (err == WSAEALREADY) {
3754 break;
3755 #endif
3756 } else {
3757 goto fail;
3758 }
3759 } else {
3760 s->connected = 1;
3761 break;
3762 }
3763 }
3764 s->fd = fd;
3765 socket_set_nodelay(fd);
3766 if (s->connected)
3767 tcp_chr_connect(chr);
3768 else
3769 qemu_set_fd_handler(s->fd, NULL, tcp_chr_connect, chr);
3770 }
3771
3772 if (is_listen && is_waitconnect) {
3773 printf("QEMU waiting for connection on: %s\n", host_str);
3774 tcp_chr_accept(chr);
3775 socket_set_nonblock(s->listen_fd);
3776 }
3777
3778 return chr;
3779 fail:
3780 if (fd >= 0)
3781 closesocket(fd);
3782 qemu_free(s);
3783 qemu_free(chr);
3784 return NULL;
3785 }
3786
3787 CharDriverState *qemu_chr_open(const char *filename)
3788 {
3789 const char *p;
3790
3791 if (!strcmp(filename, "vc")) {
3792 return text_console_init(&display_state, 0);
3793 } else if (strstart(filename, "vc:", &p)) {
3794 return text_console_init(&display_state, p);
3795 } else if (!strcmp(filename, "null")) {
3796 return qemu_chr_open_null();
3797 } else
3798 if (strstart(filename, "tcp:", &p)) {
3799 return qemu_chr_open_tcp(p, 0, 0);
3800 } else
3801 if (strstart(filename, "telnet:", &p)) {
3802 return qemu_chr_open_tcp(p, 1, 0);
3803 } else
3804 if (strstart(filename, "udp:", &p)) {
3805 return qemu_chr_open_udp(p);
3806 } else
3807 if (strstart(filename, "mon:", &p)) {
3808 CharDriverState *drv = qemu_chr_open(p);
3809 if (drv) {
3810 drv = qemu_chr_open_mux(drv);
3811 monitor_init(drv, !nographic);
3812 return drv;
3813 }
3814 printf("Unable to open driver: %s\n", p);
3815 return 0;
3816 } else
3817 #ifndef _WIN32
3818 if (strstart(filename, "unix:", &p)) {
3819 return qemu_chr_open_tcp(p, 0, 1);
3820 } else if (strstart(filename, "file:", &p)) {
3821 return qemu_chr_open_file_out(p);
3822 } else if (strstart(filename, "pipe:", &p)) {
3823 return qemu_chr_open_pipe(p);
3824 } else if (!strcmp(filename, "pty")) {
3825 return qemu_chr_open_pty();
3826 } else if (!strcmp(filename, "stdio")) {
3827 return qemu_chr_open_stdio();
3828 } else
3829 #if defined(__linux__)
3830 if (strstart(filename, "/dev/parport", NULL)) {
3831 return qemu_chr_open_pp(filename);
3832 } else
3833 #endif
3834 #if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
3835 || defined(__NetBSD__) || defined(__OpenBSD__)
3836 if (strstart(filename, "/dev/", NULL)) {
3837 return qemu_chr_open_tty(filename);
3838 } else
3839 #endif
3840 #else /* !_WIN32 */
3841 if (strstart(filename, "COM", NULL)) {
3842 return qemu_chr_open_win(filename);
3843 } else
3844 if (strstart(filename, "pipe:", &p)) {
3845 return qemu_chr_open_win_pipe(p);
3846 } else
3847 if (strstart(filename, "con:", NULL)) {
3848 return qemu_chr_open_win_con(filename);
3849 } else
3850 if (strstart(filename, "file:", &p)) {
3851 return qemu_chr_open_win_file_out(p);
3852 } else
3853 #endif
3854 #ifdef CONFIG_BRLAPI
3855 if (!strcmp(filename, "braille")) {
3856 return chr_baum_init();
3857 } else
3858 #endif
3859 {
3860 return NULL;
3861 }
3862 }
3863
3864 void qemu_chr_close(CharDriverState *chr)
3865 {
3866 if (chr->chr_close)
3867 chr->chr_close(chr);
3868 qemu_free(chr);
3869 }
3870
3871 /***********************************************************/
3872 /* network device redirectors */
3873
3874 __attribute__ (( unused ))
3875 static void hex_dump(FILE *f, const uint8_t *buf, int size)
3876 {
3877 int len, i, j, c;
3878
3879 for(i=0;i<size;i+=16) {
3880 len = size - i;
3881 if (len > 16)
3882 len = 16;
3883 fprintf(f, "%08x ", i);
3884 for(j=0;j<16;j++) {
3885 if (j < len)
3886 fprintf(f, " %02x", buf[i+j]);
3887 else
3888 fprintf(f, " ");
3889 }
3890 fprintf(f, " ");
3891 for(j=0;j<len;j++) {
3892 c = buf[i+j];
3893 if (c < ' ' || c > '~')
3894 c = '.';
3895 fprintf(f, "%c", c);
3896 }
3897 fprintf(f, "\n");
3898 }
3899 }
3900
3901 static int parse_macaddr(uint8_t *macaddr, const char *p)
3902 {
3903 int i;
3904 char *last_char;
3905 long int offset;
3906
3907 errno = 0;
3908 offset = strtol(p, &last_char, 0);
3909 if (0 == errno && '\0' == *last_char &&
3910 offset >= 0 && offset <= 0xFFFFFF) {
3911 macaddr[3] = (offset & 0xFF0000) >> 16;
3912 macaddr[4] = (offset & 0xFF00) >> 8;
3913 macaddr[5] = offset & 0xFF;
3914 return 0;
3915 } else {
3916 for(i = 0; i < 6; i++) {
3917 macaddr[i] = strtol(p, (char **)&p, 16);
3918 if (i == 5) {
3919 if (*p != '\0')
3920 return -1;
3921 } else {
3922 if (*p != ':' && *p != '-')
3923 return -1;
3924 p++;
3925 }
3926 }
3927 return 0;
3928 }
3929
3930 return -1;
3931 }
3932
3933 static int get_str_sep(char *buf, int buf_size, const char **pp, int sep)
3934 {
3935 const char *p, *p1;
3936 int len;
3937 p = *pp;
3938 p1 = strchr(p, sep);
3939 if (!p1)
3940 return -1;
3941 len = p1 - p;
3942 p1++;
3943 if (buf_size > 0) {
3944 if (len > buf_size - 1)
3945 len = buf_size - 1;
3946 memcpy(buf, p, len);
3947 buf[len] = '\0';
3948 }
3949 *pp = p1;
3950 return 0;
3951 }
3952
3953 int parse_host_src_port(struct sockaddr_in *haddr,
3954 struct sockaddr_in *saddr,
3955 const char *input_str)
3956 {
3957 char *str = strdup(input_str);
3958 char *host_str = str;
3959 char *src_str;
3960 char *ptr;
3961
3962 /*
3963 * Chop off any extra arguments at the end of the string which
3964 * would start with a comma, then fill in the src port information
3965 * if it was provided else use the "any address" and "any port".
3966 */
3967 if ((ptr = strchr(str,',')))
3968 *ptr = '\0';
3969
3970 if ((src_str = strchr(input_str,'@'))) {
3971 *src_str = '\0';
3972 src_str++;
3973 }
3974
3975 if (parse_host_port(haddr, host_str) < 0)
3976 goto fail;
3977
3978 if (!src_str || *src_str == '\0')
3979 src_str = ":0";
3980
3981 if (parse_host_port(saddr, src_str) < 0)
3982 goto fail;
3983
3984 free(str);
3985 return(0);
3986
3987 fail:
3988 free(str);
3989 return -1;
3990 }
3991
3992 int parse_host_port(struct sockaddr_in *saddr, const char *str)
3993 {
3994 char buf[512];
3995 struct hostent *he;
3996 const char *p, *r;
3997 int port;
3998
3999 p = str;
4000 if (get_str_sep(buf, sizeof(buf), &p, ':') < 0)
4001 return -1;
4002 saddr->sin_family = AF_INET;
4003 if (buf[0] == '\0') {
4004 saddr->sin_addr.s_addr = 0;
4005 } else {
4006 if (isdigit(buf[0])) {
4007 if (!inet_aton(buf, &saddr->sin_addr))
4008 return -1;
4009 } else {
4010 if ((he = gethostbyname(buf)) == NULL)
4011 return - 1;
4012 saddr->sin_addr = *(struct in_addr *)he->h_addr;
4013 }
4014 }
4015 port = strtol(p, (char **)&r, 0);
4016 if (r == p)
4017 return -1;
4018 saddr->sin_port = htons(port);
4019 return 0;
4020 }
4021
4022 #ifndef _WIN32
4023 static int parse_unix_path(struct sockaddr_un *uaddr, const char *str)
4024 {
4025 const char *p;
4026 int len;
4027
4028 len = MIN(108, strlen(str));
4029 p = strchr(str, ',');
4030 if (p)
4031 len = MIN(len, p - str);
4032
4033 memset(uaddr, 0, sizeof(*uaddr));
4034
4035 uaddr->sun_family = AF_UNIX;
4036 memcpy(uaddr->sun_path, str, len);
4037
4038 return 0;
4039 }
4040 #endif
4041
4042 /* find or alloc a new VLAN */
4043 VLANState *qemu_find_vlan(int id)
4044 {
4045 VLANState **pvlan, *vlan;
4046 for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) {
4047 if (vlan->id == id)
4048 return vlan;
4049 }
4050 vlan = qemu_mallocz(sizeof(VLANState));
4051 if (!vlan)
4052 return NULL;
4053 vlan->id = id;
4054 vlan->next = NULL;
4055 pvlan = &first_vlan;
4056 while (*pvlan != NULL)
4057 pvlan = &(*pvlan)->next;
4058 *pvlan = vlan;
4059 return vlan;
4060 }
4061
4062 VLANClientState *qemu_new_vlan_client(VLANState *vlan,
4063 IOReadHandler *fd_read,
4064 IOCanRWHandler *fd_can_read,
4065 void *opaque)
4066 {
4067 VLANClientState *vc, **pvc;
4068 vc = qemu_mallocz(sizeof(VLANClientState));
4069 if (!vc)
4070 return NULL;
4071 vc->fd_read = fd_read;
4072 vc->fd_can_read = fd_can_read;
4073 vc->opaque = opaque;
4074 vc->vlan = vlan;
4075
4076 vc->next = NULL;
4077 pvc = &vlan->first_client;
4078 while (*pvc != NULL)
4079 pvc = &(*pvc)->next;
4080 *pvc = vc;
4081 return vc;
4082 }
4083
4084 void qemu_del_vlan_client(VLANClientState *vc)
4085 {
4086 VLANClientState **pvc = &vc->vlan->first_client;
4087
4088 while (*pvc != NULL)
4089 if (*pvc == vc) {
4090 *pvc = vc->next;
4091 free(vc);
4092 break;
4093 } else
4094 pvc = &(*pvc)->next;
4095 }
4096
4097 int qemu_can_send_packet(VLANClientState *vc1)
4098 {
4099 VLANState *vlan = vc1->vlan;
4100 VLANClientState *vc;
4101
4102 for(vc = vlan->first_client; vc != NULL; vc = vc->next) {
4103 if (vc != vc1) {
4104 if (vc->fd_can_read && vc->fd_can_read(vc->opaque))
4105 return 1;
4106 }
4107 }
4108 return 0;
4109 }
4110
4111 void qemu_send_packet(VLANClientState *vc1, const uint8_t *buf, int size)
4112 {
4113 VLANState *vlan = vc1->vlan;
4114 VLANClientState *vc;
4115
4116 #if 0
4117 printf("vlan %d send:\n", vlan->id);
4118 hex_dump(stdout, buf, size);
4119 #endif
4120 for(vc = vlan->first_client; vc != NULL; vc = vc->next) {
4121 if (vc != vc1) {
4122 vc->fd_read(vc->opaque, buf, size);
4123 }
4124 }
4125 }
4126
4127 #if defined(CONFIG_SLIRP)
4128
4129 /* slirp network adapter */
4130
4131 static int slirp_inited;
4132 static VLANClientState *slirp_vc;
4133
4134 int slirp_can_output(void)
4135 {
4136 return !slirp_vc || qemu_can_send_packet(slirp_vc);
4137 }
4138
4139 void slirp_output(const uint8_t *pkt, int pkt_len)
4140 {
4141 #if 0
4142 printf("slirp output:\n");
4143 hex_dump(stdout, pkt, pkt_len);
4144 #endif
4145 if (!slirp_vc)
4146 return;
4147 qemu_send_packet(slirp_vc, pkt, pkt_len);
4148 }
4149
4150 static void slirp_receive(void *opaque, const uint8_t *buf, int size)
4151 {
4152 #if 0
4153 printf("slirp input:\n");
4154 hex_dump(stdout, buf, size);
4155 #endif
4156 slirp_input(buf, size);
4157 }
4158
4159 static int net_slirp_init(VLANState *vlan)
4160 {
4161 if (!slirp_inited) {
4162 slirp_inited = 1;
4163 slirp_init();
4164 }
4165 slirp_vc = qemu_new_vlan_client(vlan,
4166 slirp_receive, NULL, NULL);
4167 snprintf(slirp_vc->info_str, sizeof(slirp_vc->info_str), "user redirector");
4168 return 0;
4169 }
4170
4171 static void net_slirp_redir(const char *redir_str)
4172 {
4173 int is_udp;
4174 char buf[256], *r;
4175 const char *p;
4176 struct in_addr guest_addr;
4177 int host_port, guest_port;
4178
4179 if (!slirp_inited) {
4180 slirp_inited = 1;
4181 slirp_init();
4182 }
4183
4184 p = redir_str;
4185 if (get_str_sep(buf, sizeof(buf), &p, ':') < 0)
4186 goto fail;
4187 if (!strcmp(buf, "tcp")) {
4188 is_udp = 0;
4189 } else if (!strcmp(buf, "udp")) {
4190 is_udp = 1;
4191 } else {
4192 goto fail;
4193 }
4194
4195 if (get_str_sep(buf, sizeof(buf), &p, ':') < 0)
4196 goto fail;
4197 host_port = strtol(buf, &r, 0);
4198 if (r == buf)
4199 goto fail;
4200
4201 if (get_str_sep(buf, sizeof(buf), &p, ':') < 0)
4202 goto fail;
4203 if (buf[0] == '\0') {
4204 pstrcpy(buf, sizeof(buf), "10.0.2.15");
4205 }
4206 if (!inet_aton(buf, &guest_addr))
4207 goto fail;
4208
4209 guest_port = strtol(p, &r, 0);
4210 if (r == p)
4211 goto fail;
4212
4213 if (slirp_redir(is_udp, host_port, guest_addr, guest_port) < 0) {
4214 fprintf(stderr, "qemu: could not set up redirection\n");
4215 exit(1);
4216 }
4217 return;
4218 fail:
4219 fprintf(stderr, "qemu: syntax: -redir [tcp|udp]:host-port:[guest-host]:guest-port\n");
4220 exit(1);
4221 }
4222
4223 #ifndef _WIN32
4224
4225 char smb_dir[1024];
4226
4227 static void erase_dir(char *dir_name)
4228 {
4229 DIR *d;
4230 struct dirent *de;
4231 char filename[1024];
4232
4233 /* erase all the files in the directory */
4234 if ((d = opendir(dir_name)) != 0) {
4235 for(;;) {
4236 de = readdir(d);
4237 if (!de)
4238 break;
4239 if (strcmp(de->d_name, ".") != 0 &&
4240 strcmp(de->d_name, "..") != 0) {
4241 snprintf(filename, sizeof(filename), "%s/%s",
4242 smb_dir, de->d_name);
4243 if (unlink(filename) != 0) /* is it a directory? */
4244 erase_dir(filename);
4245 }
4246 }
4247 closedir(d);
4248 rmdir(dir_name);
4249 }
4250 }
4251
4252 /* automatic user mode samba server configuration */
4253 static void smb_exit(void)
4254 {
4255 erase_dir(smb_dir);
4256 }
4257
4258 /* automatic user mode samba server configuration */
4259 static void net_slirp_smb(const char *exported_dir)
4260 {
4261 char smb_conf[1024];
4262 char smb_cmdline[1024];
4263 FILE *f;
4264
4265 if (!slirp_inited) {
4266 slirp_inited = 1;
4267 slirp_init();
4268 }
4269
4270 /* XXX: better tmp dir construction */
4271 snprintf(smb_dir, sizeof(smb_dir), "/tmp/qemu-smb.%d", getpid());
4272 if (mkdir(smb_dir, 0700) < 0) {
4273 fprintf(stderr, "qemu: could not create samba server dir '%s'\n", smb_dir);
4274 exit(1);
4275 }
4276 snprintf(smb_conf, sizeof(smb_conf), "%s/%s", smb_dir, "smb.conf");
4277
4278 f = fopen(smb_conf, "w");
4279 if (!f) {
4280 fprintf(stderr, "qemu: could not create samba server configuration file '%s'\n", smb_conf);
4281 exit(1);
4282 }
4283 fprintf(f,
4284 "[global]\n"
4285 "private dir=%s\n"
4286 "smb ports=0\n"
4287 "socket address=127.0.0.1\n"
4288 "pid directory=%s\n"
4289 "lock directory=%s\n"
4290 "log file=%s/log.smbd\n"
4291 "smb passwd file=%s/smbpasswd\n"
4292 "security = share\n"
4293 "[qemu]\n"
4294 "path=%s\n"
4295 "read only=no\n"
4296 "guest ok=yes\n",
4297 smb_dir,
4298 smb_dir,
4299 smb_dir,
4300 smb_dir,
4301 smb_dir,
4302 exported_dir
4303 );
4304 fclose(f);
4305 atexit(smb_exit);
4306
4307 snprintf(smb_cmdline, sizeof(smb_cmdline), "%s -s %s",
4308 SMBD_COMMAND, smb_conf);
4309
4310 slirp_add_exec(0, smb_cmdline, 4, 139);
4311 }
4312
4313 #endif /* !defined(_WIN32) */
4314 void do_info_slirp(void)
4315 {
4316 slirp_stats();
4317 }
4318
4319 #endif /* CONFIG_SLIRP */
4320
4321 #if !defined(_WIN32)
4322
4323 typedef struct TAPState {
4324 VLANClientState *vc;
4325 int fd;
4326 char down_script[1024];
4327 } TAPState;
4328
4329 static void tap_receive(void *opaque, const uint8_t *buf, int size)
4330 {
4331 TAPState *s = opaque;
4332 int ret;
4333 for(;;) {
4334 ret = write(s->fd, buf, size);
4335 if (ret < 0 && (errno == EINTR || errno == EAGAIN)) {
4336 } else {
4337 break;
4338 }
4339 }
4340 }
4341
4342 static void tap_send(void *opaque)
4343 {
4344 TAPState *s = opaque;
4345 uint8_t buf[4096];
4346 int size;
4347
4348 #ifdef __sun__
4349 struct strbuf sbuf;
4350 int f = 0;
4351 sbuf.maxlen = sizeof(buf);
4352 sbuf.buf = buf;
4353 size = getmsg(s->fd, NULL, &sbuf, &f) >=0 ? sbuf.len : -1;
4354 #else
4355 size = read(s->fd, buf, sizeof(buf));
4356 #endif
4357 if (size > 0) {
4358 qemu_send_packet(s->vc, buf, size);
4359 }
4360 }
4361
4362 /* fd support */
4363
4364 static TAPState *net_tap_fd_init(VLANState *vlan, int fd)
4365 {
4366 TAPState *s;
4367
4368 s = qemu_mallocz(sizeof(TAPState));
4369 if (!s)
4370 return NULL;
4371 s->fd = fd;
4372 s->vc = qemu_new_vlan_client(vlan, tap_receive, NULL, s);
4373 qemu_set_fd_handler(s->fd, tap_send, NULL, s);
4374 snprintf(s->vc->info_str, sizeof(s->vc->info_str), "tap: fd=%d", fd);
4375 return s;
4376 }
4377
4378 #if defined (_BSD) || defined (__FreeBSD_kernel__)
4379 static int tap_open(char *ifname, int ifname_size)
4380 {
4381 int fd;
4382 char *dev;
4383 struct stat s;
4384
4385 TFR(fd = open("/dev/tap", O_RDWR));
4386 if (fd < 0) {
4387 fprintf(stderr, "warning: could not open /dev/tap: no virtual network emulation\n");
4388 return -1;
4389 }
4390
4391 fstat(fd, &s);
4392 dev = devname(s.st_rdev, S_IFCHR);
4393 pstrcpy(ifname, ifname_size, dev);
4394
4395 fcntl(fd, F_SETFL, O_NONBLOCK);
4396 return fd;
4397 }
4398 #elif defined(__sun__)
4399 #define TUNNEWPPA (('T'<<16) | 0x0001)
4400 /*
4401 * Allocate TAP device, returns opened fd.
4402 * Stores dev name in the first arg(must be large enough).
4403 */
4404 int tap_alloc(char *dev, size_t dev_size)
4405 {
4406 int tap_fd, if_fd, ppa = -1;
4407 static int ip_fd = 0;
4408 char *ptr;
4409
4410 static int arp_fd = 0;
4411 int ip_muxid, arp_muxid;
4412 struct strioctl strioc_if, strioc_ppa;
4413 int link_type = I_PLINK;;
4414 struct lifreq ifr;
4415 char actual_name[32] = "";
4416
4417 memset(&ifr, 0x0, sizeof(ifr));
4418
4419 if( *dev ){
4420 ptr = dev;
4421 while( *ptr && !isdigit((int)*ptr) ) ptr++;
4422 ppa = atoi(ptr);
4423 }
4424
4425 /* Check if IP device was opened */
4426 if( ip_fd )
4427 close(ip_fd);
4428
4429 TFR(ip_fd = open("/dev/udp", O_RDWR, 0));
4430 if (ip_fd < 0) {
4431 syslog(LOG_ERR, "Can't open /dev/ip (actually /dev/udp)");
4432 return -1;
4433 }
4434
4435 TFR(tap_fd = open("/dev/tap", O_RDWR, 0));
4436 if (tap_fd < 0) {
4437 syslog(LOG_ERR, "Can't open /dev/tap");
4438 return -1;
4439 }
4440
4441 /* Assign a new PPA and get its unit number. */
4442 strioc_ppa.ic_cmd = TUNNEWPPA;
4443 strioc_ppa.ic_timout = 0;
4444 strioc_ppa.ic_len = sizeof(ppa);
4445 strioc_ppa.ic_dp = (char *)&ppa;
4446 if ((ppa = ioctl (tap_fd, I_STR, &strioc_ppa)) < 0)
4447 syslog (LOG_ERR, "Can't assign new interface");
4448
4449 TFR(if_fd = open("/dev/tap", O_RDWR, 0));
4450 if (if_fd < 0) {
4451 syslog(LOG_ERR, "Can't open /dev/tap (2)");
4452 return -1;
4453 }
4454 if(ioctl(if_fd, I_PUSH, "ip") < 0){
4455 syslog(LOG_ERR, "Can't push IP module");
4456 return -1;
4457 }
4458
4459 if (ioctl(if_fd, SIOCGLIFFLAGS, &ifr) < 0)
4460 syslog(LOG_ERR, "Can't get flags\n");
4461
4462 snprintf (actual_name, 32, "tap%d", ppa);
4463 strncpy (ifr.lifr_name, actual_name, sizeof (ifr.lifr_name));
4464
4465 ifr.lifr_ppa = ppa;
4466 /* Assign ppa according to the unit number returned by tun device */
4467
4468 if (ioctl (if_fd, SIOCSLIFNAME, &ifr) < 0)
4469 syslog (LOG_ERR, "Can't set PPA %d", ppa);
4470 if (ioctl(if_fd, SIOCGLIFFLAGS, &ifr) <0)
4471 syslog (LOG_ERR, "Can't get flags\n");
4472 /* Push arp module to if_fd */
4473 if (ioctl (if_fd, I_PUSH, "arp") < 0)
4474 syslog (LOG_ERR, "Can't push ARP module (2)");
4475
4476 /* Push arp module to ip_fd */
4477 if (ioctl (ip_fd, I_POP, NULL) < 0)
4478 syslog (LOG_ERR, "I_POP failed\n");
4479 if (ioctl (ip_fd, I_PUSH, "arp") < 0)
4480 syslog (LOG_ERR, "Can't push ARP module (3)\n");
4481 /* Open arp_fd */
4482 TFR(arp_fd = open ("/dev/tap", O_RDWR, 0));
4483 if (arp_fd < 0)
4484 syslog (LOG_ERR, "Can't open %s\n", "/dev/tap");
4485
4486 /* Set ifname to arp */
4487 strioc_if.ic_cmd = SIOCSLIFNAME;
4488 strioc_if.ic_timout = 0;
4489 strioc_if.ic_len = sizeof(ifr);
4490 strioc_if.ic_dp = (char *)&ifr;
4491 if (ioctl(arp_fd, I_STR, &strioc_if) < 0){
4492 syslog (LOG_ERR, "Can't set ifname to arp\n");
4493 }
4494
4495 if((ip_muxid = ioctl(ip_fd, I_LINK, if_fd)) < 0){
4496 syslog(LOG_ERR, "Can't link TAP device to IP");
4497 return -1;
4498 }
4499
4500 if ((arp_muxid = ioctl (ip_fd, link_type, arp_fd)) < 0)
4501 syslog (LOG_ERR, "Can't link TAP device to ARP");
4502
4503 close (if_fd);
4504
4505 memset(&ifr, 0x0, sizeof(ifr));
4506 strncpy (ifr.lifr_name, actual_name, sizeof (ifr.lifr_name));
4507 ifr.lifr_ip_muxid = ip_muxid;
4508 ifr.lifr_arp_muxid = arp_muxid;
4509
4510 if (ioctl (ip_fd, SIOCSLIFMUXID, &ifr) < 0)
4511 {
4512 ioctl (ip_fd, I_PUNLINK , arp_muxid);
4513 ioctl (ip_fd, I_PUNLINK, ip_muxid);
4514 syslog (LOG_ERR, "Can't set multiplexor id");
4515 }
4516
4517 snprintf(dev, dev_size, "tap%d", ppa);
4518 return tap_fd;
4519 }
4520
4521 static int tap_open(char *ifname, int ifname_size)
4522 {
4523 char dev[10]="";
4524 int fd;
4525 if( (fd = tap_alloc(dev, sizeof(dev))) < 0 ){
4526 fprintf(stderr, "Cannot allocate TAP device\n");
4527 return -1;
4528 }
4529 pstrcpy(ifname, ifname_size, dev);
4530 fcntl(fd, F_SETFL, O_NONBLOCK);
4531 return fd;
4532 }
4533 #else
4534 static int tap_open(char *ifname, int ifname_size)
4535 {
4536 struct ifreq ifr;
4537 int fd, ret;
4538
4539 TFR(fd = open("/dev/net/tun", O_RDWR));
4540 if (fd < 0) {
4541 fprintf(stderr, "warning: could not open /dev/net/tun: no virtual network emulation\n");
4542 return -1;
4543 }
4544 memset(&ifr, 0, sizeof(ifr));
4545 ifr.ifr_flags = IFF_TAP | IFF_NO_PI;
4546 if (ifname[0] != '\0')
4547 pstrcpy(ifr.ifr_name, IFNAMSIZ, ifname);
4548 else
4549 pstrcpy(ifr.ifr_name, IFNAMSIZ, "tap%d");
4550 ret = ioctl(fd, TUNSETIFF, (void *) &ifr);
4551 if (ret != 0) {
4552 fprintf(stderr, "warning: could not configure /dev/net/tun: no virtual network emulation\n");
4553 close(fd);
4554 return -1;
4555 }
4556 pstrcpy(ifname, ifname_size, ifr.ifr_name);
4557 fcntl(fd, F_SETFL, O_NONBLOCK);
4558 return fd;
4559 }
4560 #endif
4561
4562 static int launch_script(const char *setup_script, const char *ifname, int fd)
4563 {
4564 int pid, status;
4565 char *args[3];
4566 char **parg;
4567
4568 /* try to launch network script */
4569 pid = fork();
4570 if (pid >= 0) {
4571 if (pid == 0) {
4572 int open_max = sysconf (_SC_OPEN_MAX), i;
4573 for (i = 0; i < open_max; i++)
4574 if (i != STDIN_FILENO &&
4575 i != STDOUT_FILENO &&
4576 i != STDERR_FILENO &&
4577 i != fd)
4578 close(i);
4579
4580 parg = args;
4581 *parg++ = (char *)setup_script;
4582 *parg++ = (char *)ifname;
4583 *parg++ = NULL;
4584 execv(setup_script, args);
4585 _exit(1);
4586 }
4587 while (waitpid(pid, &status, 0) != pid);
4588 if (!WIFEXITED(status) ||
4589 WEXITSTATUS(status) != 0) {
4590 fprintf(stderr, "%s: could not launch network script\n",
4591 setup_script);
4592 return -1;
4593 }
4594 }
4595 return 0;
4596 }
4597
4598 static int net_tap_init(VLANState *vlan, const char *ifname1,
4599 const char *setup_script, const char *down_script)
4600 {
4601 TAPState *s;
4602 int fd;
4603 char ifname[128];
4604
4605 if (ifname1 != NULL)
4606 pstrcpy(ifname, sizeof(ifname), ifname1);
4607 else
4608 ifname[0] = '\0';
4609 TFR(fd = tap_open(ifname, sizeof(ifname)));
4610 if (fd < 0)
4611 return -1;
4612
4613 if (!setup_script || !strcmp(setup_script, "no"))
4614 setup_script = "";
4615 if (setup_script[0] != '\0') {
4616 if (launch_script(setup_script, ifname, fd))
4617 return -1;
4618 }
4619 s = net_tap_fd_init(vlan, fd);
4620 if (!s)
4621 return -1;
4622 snprintf(s->vc->info_str, sizeof(s->vc->info_str),
4623 "tap: ifname=%s setup_script=%s", ifname, setup_script);
4624 if (down_script && strcmp(down_script, "no"))
4625 snprintf(s->down_script, sizeof(s->down_script), "%s", down_script);
4626 return 0;
4627 }
4628
4629 #endif /* !_WIN32 */
4630
4631 #if defined(CONFIG_VDE)
4632 typedef struct VDEState {
4633 VLANClientState *vc;
4634 VDECONN *vde;
4635 } VDEState;
4636
4637 static void vde_to_qemu(void *opaque)
4638 {
4639 VDEState *s = opaque;
4640 uint8_t buf[4096];
4641 int size;
4642
4643 size = vde_recv(s->vde, buf, sizeof(buf), 0);
4644 if (size > 0) {
4645 qemu_send_packet(s->vc, buf, size);
4646 }
4647 }
4648
4649 static void vde_from_qemu(void *opaque, const uint8_t *buf, int size)
4650 {
4651 VDEState *s = opaque;
4652 int ret;
4653 for(;;) {
4654 ret = vde_send(s->vde, buf, size, 0);
4655 if (ret < 0 && errno == EINTR) {
4656 } else {
4657 break;
4658 }
4659 }
4660 }
4661
4662 static int net_vde_init(VLANState *vlan, const char *sock, int port,
4663 const char *group, int mode)
4664 {
4665 VDEState *s;
4666 char *init_group = strlen(group) ? (char *)group : NULL;
4667 char *init_sock = strlen(sock) ? (char *)sock : NULL;
4668
4669 struct vde_open_args args = {
4670 .port = port,
4671 .group = init_group,
4672 .mode = mode,
4673 };
4674
4675 s = qemu_mallocz(sizeof(VDEState));
4676 if (!s)
4677 return -1;
4678 s->vde = vde_open(init_sock, "QEMU", &args);
4679 if (!s->vde){
4680 free(s);
4681 return -1;
4682 }
4683 s->vc = qemu_new_vlan_client(vlan, vde_from_qemu, NULL, s);
4684 qemu_set_fd_handler(vde_datafd(s->vde), vde_to_qemu, NULL, s);
4685 snprintf(s->vc->info_str, sizeof(s->vc->info_str), "vde: sock=%s fd=%d",
4686 sock, vde_datafd(s->vde));
4687 return 0;
4688 }
4689 #endif
4690
4691 /* network connection */
4692 typedef struct NetSocketState {
4693 VLANClientState *vc;
4694 int fd;
4695 int state; /* 0 = getting length, 1 = getting data */
4696 int index;
4697 int packet_len;
4698 uint8_t buf[4096];
4699 struct sockaddr_in dgram_dst; /* contains inet host and port destination iff connectionless (SOCK_DGRAM) */
4700 } NetSocketState;
4701
4702 typedef struct NetSocketListenState {
4703 VLANState *vlan;
4704 int fd;
4705 } NetSocketListenState;
4706
4707 /* XXX: we consider we can send the whole packet without blocking */
4708 static void net_socket_receive(void *opaque, const uint8_t *buf, int size)
4709 {
4710 NetSocketState *s = opaque;
4711 uint32_t len;
4712 len = htonl(size);
4713
4714 send_all(s->fd, (const uint8_t *)&len, sizeof(len));
4715 send_all(s->fd, buf, size);
4716 }
4717
4718 static void net_socket_receive_dgram(void *opaque, const uint8_t *buf, int size)
4719 {
4720 NetSocketState *s = opaque;
4721 sendto(s->fd, buf, size, 0,
4722 (struct sockaddr *)&s->dgram_dst, sizeof(s->dgram_dst));
4723 }
4724
4725 static void net_socket_send(void *opaque)
4726 {
4727 NetSocketState *s = opaque;
4728 int l, size, err;
4729 uint8_t buf1[4096];
4730 const uint8_t *buf;
4731
4732 size = recv(s->fd, buf1, sizeof(buf1), 0);
4733 if (size < 0) {
4734 err = socket_error();
4735 if (err != EWOULDBLOCK)
4736 goto eoc;
4737 } else if (size == 0) {
4738 /* end of connection */
4739 eoc:
4740 qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
4741 closesocket(s->fd);
4742 return;
4743 }
4744 buf = buf1;
4745 while (size > 0) {
4746 /* reassemble a packet from the network */
4747 switch(s->state) {
4748 case 0:
4749 l = 4 - s->index;
4750 if (l > size)
4751 l = size;
4752 memcpy(s->buf + s->index, buf, l);
4753 buf += l;
4754 size -= l;
4755 s->index += l;
4756 if (s->index == 4) {
4757 /* got length */
4758 s->packet_len = ntohl(*(uint32_t *)s->buf);
4759 s->index = 0;
4760 s->state = 1;
4761 }
4762 break;
4763 case 1:
4764 l = s->packet_len - s->index;
4765 if (l > size)
4766 l = size;
4767 memcpy(s->buf + s->index, buf, l);
4768 s->index += l;
4769 buf += l;
4770 size -= l;
4771 if (s->index >= s->packet_len) {
4772 qemu_send_packet(s->vc, s->buf, s->packet_len);
4773 s->index = 0;
4774 s->state = 0;
4775 }
4776 break;
4777 }
4778 }
4779 }
4780
4781 static void net_socket_send_dgram(void *opaque)
4782 {
4783 NetSocketState *s = opaque;
4784 int size;
4785
4786 size = recv(s->fd, s->buf, sizeof(s->buf), 0);
4787 if (size < 0)
4788 return;
4789 if (size == 0) {
4790 /* end of connection */
4791 qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
4792 return;
4793 }
4794 qemu_send_packet(s->vc, s->buf, size);
4795 }
4796
4797 static int net_socket_mcast_create(struct sockaddr_in *mcastaddr)
4798 {
4799 struct ip_mreq imr;
4800 int fd;
4801 int val, ret;
4802 if (!IN_MULTICAST(ntohl(mcastaddr->sin_addr.s_addr))) {
4803 fprintf(stderr, "qemu: error: specified mcastaddr \"%s\" (0x%08x) does not contain a multicast address\n",
4804 inet_ntoa(mcastaddr->sin_addr),
4805 (int)ntohl(mcastaddr->sin_addr.s_addr));
4806 return -1;
4807
4808 }
4809 fd = socket(PF_INET, SOCK_DGRAM, 0);
4810 if (fd < 0) {
4811 perror("socket(PF_INET, SOCK_DGRAM)");
4812 return -1;
4813 }
4814
4815 val = 1;
4816 ret=setsockopt(fd, SOL_SOCKET, SO_REUSEADDR,
4817 (const char *)&val, sizeof(val));
4818 if (ret < 0) {
4819 perror("setsockopt(SOL_SOCKET, SO_REUSEADDR)");
4820 goto fail;
4821 }
4822
4823 ret = bind(fd, (struct sockaddr *)mcastaddr, sizeof(*mcastaddr));
4824 if (ret < 0) {
4825 perror("bind");
4826 goto fail;
4827 }
4828
4829 /* Add host to multicast group */
4830 imr.imr_multiaddr = mcastaddr->sin_addr;
4831 imr.imr_interface.s_addr = htonl(INADDR_ANY);
4832
4833 ret = setsockopt(fd, IPPROTO_IP, IP_ADD_MEMBERSHIP,
4834 (const char *)&imr, sizeof(struct ip_mreq));
4835 if (ret < 0) {
4836 perror("setsockopt(IP_ADD_MEMBERSHIP)");
4837 goto fail;
4838 }
4839
4840 /* Force mcast msgs to loopback (eg. several QEMUs in same host */
4841 val = 1;
4842 ret=setsockopt(fd, IPPROTO_IP, IP_MULTICAST_LOOP,
4843 (const char *)&val, sizeof(val));
4844 if (ret < 0) {
4845 perror("setsockopt(SOL_IP, IP_MULTICAST_LOOP)");
4846 goto fail;
4847 }
4848
4849 socket_set_nonblock(fd);
4850 return fd;
4851 fail:
4852 if (fd >= 0)
4853 closesocket(fd);
4854 return -1;
4855 }
4856
4857 static NetSocketState *net_socket_fd_init_dgram(VLANState *vlan, int fd,
4858 int is_connected)
4859 {
4860 struct sockaddr_in saddr;
4861 int newfd;
4862 socklen_t saddr_len;
4863 NetSocketState *s;
4864
4865 /* fd passed: multicast: "learn" dgram_dst address from bound address and save it
4866 * Because this may be "shared" socket from a "master" process, datagrams would be recv()
4867 * by ONLY ONE process: we must "clone" this dgram socket --jjo
4868 */
4869
4870 if (is_connected) {
4871 if (getsockname(fd, (struct sockaddr *) &saddr, &saddr_len) == 0) {
4872 /* must be bound */
4873 if (saddr.sin_addr.s_addr==0) {
4874 fprintf(stderr, "qemu: error: init_dgram: fd=%d unbound, cannot setup multicast dst addr\n",
4875 fd);
4876 return NULL;
4877 }
4878 /* clone dgram socket */
4879 newfd = net_socket_mcast_create(&saddr);
4880 if (newfd < 0) {
4881 /* error already reported by net_socket_mcast_create() */
4882 close(fd);
4883 return NULL;
4884 }
4885 /* clone newfd to fd, close newfd */
4886 dup2(newfd, fd);
4887 close(newfd);
4888
4889 } else {
4890 fprintf(stderr, "qemu: error: init_dgram: fd=%d failed getsockname(): %s\n",
4891 fd, strerror(errno));
4892 return NULL;
4893 }
4894 }
4895
4896 s = qemu_mallocz(sizeof(NetSocketState));
4897 if (!s)
4898 return NULL;
4899 s->fd = fd;
4900
4901 s->vc = qemu_new_vlan_client(vlan, net_socket_receive_dgram, NULL, s);
4902 qemu_set_fd_handler(s->fd, net_socket_send_dgram, NULL, s);
4903
4904 /* mcast: save bound address as dst */
4905 if (is_connected) s->dgram_dst=saddr;
4906
4907 snprintf(s->vc->info_str, sizeof(s->vc->info_str),
4908 "socket: fd=%d (%s mcast=%s:%d)",
4909 fd, is_connected? "cloned" : "",
4910 inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
4911 return s;
4912 }
4913
4914 static void net_socket_connect(void *opaque)
4915 {
4916 NetSocketState *s = opaque;
4917 qemu_set_fd_handler(s->fd, net_socket_send, NULL, s);
4918 }
4919
4920 static NetSocketState *net_socket_fd_init_stream(VLANState *vlan, int fd,
4921 int is_connected)
4922 {
4923 NetSocketState *s;
4924 s = qemu_mallocz(sizeof(NetSocketState));
4925 if (!s)
4926 return NULL;
4927 s->fd = fd;
4928 s->vc = qemu_new_vlan_client(vlan,
4929 net_socket_receive, NULL, s);
4930 snprintf(s->vc->info_str, sizeof(s->vc->info_str),
4931 "socket: fd=%d", fd);
4932 if (is_connected) {
4933 net_socket_connect(s);
4934 } else {
4935 qemu_set_fd_handler(s->fd, NULL, net_socket_connect, s);
4936 }
4937 return s;
4938 }
4939
4940 static NetSocketState *net_socket_fd_init(VLANState *vlan, int fd,
4941 int is_connected)
4942 {
4943 int so_type=-1, optlen=sizeof(so_type);
4944
4945 if(getsockopt(fd, SOL_SOCKET, SO_TYPE, (char *)&so_type,
4946 (socklen_t *)&optlen)< 0) {
4947 fprintf(stderr, "qemu: error: getsockopt(SO_TYPE) for fd=%d failed\n", fd);
4948 return NULL;
4949 }
4950 switch(so_type) {
4951 case SOCK_DGRAM:
4952 return net_socket_fd_init_dgram(vlan, fd, is_connected);
4953 case SOCK_STREAM:
4954 return net_socket_fd_init_stream(vlan, fd, is_connected);
4955 default:
4956 /* who knows ... this could be a eg. a pty, do warn and continue as stream */
4957 fprintf(stderr, "qemu: warning: socket type=%d for fd=%d is not SOCK_DGRAM or SOCK_STREAM\n", so_type, fd);
4958 return net_socket_fd_init_stream(vlan, fd, is_connected);
4959 }
4960 return NULL;
4961 }
4962
4963 static void net_socket_accept(void *opaque)
4964 {
4965 NetSocketListenState *s = opaque;
4966 NetSocketState *s1;
4967 struct sockaddr_in saddr;
4968 socklen_t len;
4969 int fd;
4970
4971 for(;;) {
4972 len = sizeof(saddr);
4973 fd = accept(s->fd, (struct sockaddr *)&saddr, &len);
4974 if (fd < 0 && errno != EINTR) {
4975 return;
4976 } else if (fd >= 0) {
4977 break;
4978 }
4979 }
4980 s1 = net_socket_fd_init(s->vlan, fd, 1);
4981 if (!s1) {
4982 closesocket(fd);
4983 } else {
4984 snprintf(s1->vc->info_str, sizeof(s1->vc->info_str),
4985 "socket: connection from %s:%d",
4986 inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
4987 }
4988 }
4989
4990 static int net_socket_listen_init(VLANState *vlan, const char *host_str)
4991 {
4992 NetSocketListenState *s;
4993 int fd, val, ret;
4994 struct sockaddr_in saddr;
4995
4996 if (parse_host_port(&saddr, host_str) < 0)
4997 return -1;
4998
4999 s = qemu_mallocz(sizeof(NetSocketListenState));
5000 if (!s)
5001 return -1;
5002
5003 fd = socket(PF_INET, SOCK_STREAM, 0);
5004 if (fd < 0) {
5005 perror("socket");
5006 return -1;
5007 }
5008 socket_set_nonblock(fd);
5009
5010 /* allow fast reuse */
5011 val = 1;
5012 setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (const char *)&val, sizeof(val));
5013
5014 ret = bind(fd, (struct sockaddr *)&saddr, sizeof(saddr));
5015 if (ret < 0) {
5016 perror("bind");
5017 return -1;
5018 }
5019 ret = listen(fd, 0);
5020 if (ret < 0) {
5021 perror("listen");
5022 return -1;
5023 }
5024 s->vlan = vlan;
5025 s->fd = fd;
5026 qemu_set_fd_handler(fd, net_socket_accept, NULL, s);
5027 return 0;
5028 }
5029
5030 static int net_socket_connect_init(VLANState *vlan, const char *host_str)
5031 {
5032 NetSocketState *s;
5033 int fd, connected, ret, err;
5034 struct sockaddr_in saddr;
5035
5036 if (parse_host_port(&saddr, host_str) < 0)
5037 return -1;
5038
5039 fd = socket(PF_INET, SOCK_STREAM, 0);
5040 if (fd < 0) {
5041 perror("socket");
5042 return -1;
5043 }
5044 socket_set_nonblock(fd);
5045
5046 connected = 0;
5047 for(;;) {
5048 ret = connect(fd, (struct sockaddr *)&saddr, sizeof(saddr));
5049 if (ret < 0) {
5050 err = socket_error();
5051 if (err == EINTR || err == EWOULDBLOCK) {
5052 } else if (err == EINPROGRESS) {
5053 break;
5054 #ifdef _WIN32
5055 } else if (err == WSAEALREADY) {
5056 break;
5057 #endif
5058 } else {
5059 perror("connect");
5060 closesocket(fd);
5061 return -1;
5062 }
5063 } else {
5064 connected = 1;
5065 break;
5066 }
5067 }
5068 s = net_socket_fd_init(vlan, fd, connected);
5069 if (!s)
5070 return -1;
5071 snprintf(s->vc->info_str, sizeof(s->vc->info_str),
5072 "socket: connect to %s:%d",
5073 inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
5074 return 0;
5075 }
5076
5077 static int net_socket_mcast_init(VLANState *vlan, const char *host_str)
5078 {
5079 NetSocketState *s;
5080 int fd;
5081 struct sockaddr_in saddr;
5082
5083 if (parse_host_port(&saddr, host_str) < 0)
5084 return -1;
5085
5086
5087 fd = net_socket_mcast_create(&saddr);
5088 if (fd < 0)
5089 return -1;
5090
5091 s = net_socket_fd_init(vlan, fd, 0);
5092 if (!s)
5093 return -1;
5094
5095 s->dgram_dst = saddr;
5096
5097 snprintf(s->vc->info_str, sizeof(s->vc->info_str),
5098 "socket: mcast=%s:%d",
5099 inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
5100 return 0;
5101
5102 }
5103
5104 static const char *get_opt_name(char *buf, int buf_size, const char *p)
5105 {
5106 char *q;
5107
5108 q = buf;
5109 while (*p != '\0' && *p != '=') {
5110 if (q && (q - buf) < buf_size - 1)
5111 *q++ = *p;
5112 p++;
5113 }
5114 if (q)
5115 *q = '\0';
5116
5117 return p;
5118 }
5119
5120 static const char *get_opt_value(char *buf, int buf_size, const char *p)
5121 {
5122 char *q;
5123
5124 q = buf;
5125 while (*p != '\0') {
5126 if (*p == ',') {
5127 if (*(p + 1) != ',')
5128 break;
5129 p++;
5130 }
5131 if (q && (q - buf) < buf_size - 1)
5132 *q++ = *p;
5133 p++;
5134 }
5135 if (q)
5136 *q = '\0';
5137
5138 return p;
5139 }
5140
5141 static int get_param_value(char *buf, int buf_size,
5142 const char *tag, const char *str)
5143 {
5144 const char *p;
5145 char option[128];
5146
5147 p = str;
5148 for(;;) {
5149 p = get_opt_name(option, sizeof(option), p);
5150 if (*p != '=')
5151 break;
5152 p++;
5153 if (!strcmp(tag, option)) {
5154 (void)get_opt_value(buf, buf_size, p);
5155 return strlen(buf);
5156 } else {
5157 p = get_opt_value(NULL, 0, p);
5158 }
5159 if (*p != ',')
5160 break;
5161 p++;
5162 }
5163 return 0;
5164 }
5165
5166 static int check_params(char *buf, int buf_size,
5167 char **params, const char *str)
5168 {
5169 const char *p;
5170 int i;
5171
5172 p = str;
5173 for(;;) {
5174 p = get_opt_name(buf, buf_size, p);
5175 if (*p != '=')
5176 return -1;
5177 p++;
5178 for(i = 0; params[i] != NULL; i++)
5179 if (!strcmp(params[i], buf))
5180 break;
5181 if (params[i] == NULL)
5182 return -1;
5183 p = get_opt_value(NULL, 0, p);
5184 if (*p != ',')
5185 break;
5186 p++;
5187 }
5188 return 0;
5189 }
5190
5191 static int net_client_init(const char *device, const char *p)
5192 {
5193 char buf[1024];
5194 int vlan_id, ret;
5195 VLANState *vlan;
5196
5197 vlan_id = 0;
5198 if (get_param_value(buf, sizeof(buf), "vlan", p)) {
5199 vlan_id = strtol(buf, NULL, 0);
5200 }
5201 vlan = qemu_find_vlan(vlan_id);
5202 if (!vlan) {
5203 fprintf(stderr, "Could not create vlan %d\n", vlan_id);
5204 return -1;
5205 }
5206 if (!strcmp(device, "nic")) {
5207 NICInfo *nd;
5208 uint8_t *macaddr;
5209
5210 if (nb_nics >= MAX_NICS) {
5211 fprintf(stderr, "Too Many NICs\n");
5212 return -1;
5213 }
5214 nd = &nd_table[nb_nics];
5215 macaddr = nd->macaddr;
5216 macaddr[0] = 0x52;
5217 macaddr[1] = 0x54;
5218 macaddr[2] = 0x00;
5219 macaddr[3] = 0x12;
5220 macaddr[4] = 0x34;
5221 macaddr[5] = 0x56 + nb_nics;
5222
5223 if (get_param_value(buf, sizeof(buf), "macaddr", p)) {
5224 if (parse_macaddr(macaddr, buf) < 0) {
5225 fprintf(stderr, "invalid syntax for ethernet address\n");
5226 return -1;
5227 }
5228 }
5229 if (get_param_value(buf, sizeof(buf), "model", p)) {
5230 nd->model = strdup(buf);
5231 }
5232 nd->vlan = vlan;
5233 nb_nics++;
5234 vlan->nb_guest_devs++;
5235 ret = 0;
5236 } else
5237 if (!strcmp(device, "none")) {
5238 /* does nothing. It is needed to signal that no network cards
5239 are wanted */
5240 ret = 0;
5241 } else
5242 #ifdef CONFIG_SLIRP
5243 if (!strcmp(device, "user")) {
5244 if (get_param_value(buf, sizeof(buf), "hostname", p)) {
5245 pstrcpy(slirp_hostname, sizeof(slirp_hostname), buf);
5246 }
5247 vlan->nb_host_devs++;
5248 ret = net_slirp_init(vlan);
5249 } else
5250 #endif
5251 #ifdef _WIN32
5252 if (!strcmp(device, "tap")) {
5253 char ifname[64];
5254 if (get_param_value(ifname, sizeof(ifname), "ifname", p) <= 0) {
5255 fprintf(stderr, "tap: no interface name\n");
5256 return -1;
5257 }
5258 vlan->nb_host_devs++;
5259 ret = tap_win32_init(vlan, ifname);
5260 } else
5261 #else
5262 if (!strcmp(device, "tap")) {
5263 char ifname[64];
5264 char setup_script[1024], down_script[1024];
5265 int fd;
5266 vlan->nb_host_devs++;
5267 if (get_param_value(buf, sizeof(buf), "fd", p) > 0) {
5268 fd = strtol(buf, NULL, 0);
5269 fcntl(fd, F_SETFL, O_NONBLOCK);
5270 ret = -1;
5271 if (net_tap_fd_init(vlan, fd))
5272 ret = 0;
5273 } else {
5274 if (get_param_value(ifname, sizeof(ifname), "ifname", p) <= 0) {
5275 ifname[0] = '\0';
5276 }
5277 if (get_param_value(setup_script, sizeof(setup_script), "script", p) == 0) {
5278 pstrcpy(setup_script, sizeof(setup_script), DEFAULT_NETWORK_SCRIPT);
5279 }
5280 if (get_param_value(down_script, sizeof(down_script), "downscript", p) == 0) {
5281 pstrcpy(down_script, sizeof(down_script), DEFAULT_NETWORK_DOWN_SCRIPT);
5282 }
5283 ret = net_tap_init(vlan, ifname, setup_script, down_script);
5284 }
5285 } else
5286 #endif
5287 if (!strcmp(device, "socket")) {
5288 if (get_param_value(buf, sizeof(buf), "fd", p) > 0) {
5289 int fd;
5290 fd = strtol(buf, NULL, 0);
5291 ret = -1;
5292 if (net_socket_fd_init(vlan, fd, 1))
5293 ret = 0;
5294 } else if (get_param_value(buf, sizeof(buf), "listen", p) > 0) {
5295 ret = net_socket_listen_init(vlan, buf);
5296 } else if (get_param_value(buf, sizeof(buf), "connect", p) > 0) {
5297 ret = net_socket_connect_init(vlan, buf);
5298 } else if (get_param_value(buf, sizeof(buf), "mcast", p) > 0) {
5299 ret = net_socket_mcast_init(vlan, buf);
5300 } else {
5301 fprintf(stderr, "Unknown socket options: %s\n", p);
5302 return -1;
5303 }
5304 vlan->nb_host_devs++;
5305 } else
5306 #ifdef CONFIG_VDE
5307 if (!strcmp(device, "vde")) {
5308 char vde_sock[1024], vde_group[512];
5309 int vde_port, vde_mode;
5310 vlan->nb_host_devs++;
5311 if (get_param_value(vde_sock, sizeof(vde_sock), "sock", p) <= 0) {
5312 vde_sock[0] = '\0';
5313 }
5314 if (get_param_value(buf, sizeof(buf), "port", p) > 0) {
5315 vde_port = strtol(buf, NULL, 10);
5316 } else {
5317 vde_port = 0;
5318 }
5319 if (get_param_value(vde_group, sizeof(vde_group), "group", p) <= 0) {
5320 vde_group[0] = '\0';
5321 }
5322 if (get_param_value(buf, sizeof(buf), "mode", p) > 0) {
5323 vde_mode = strtol(buf, NULL, 8);
5324 } else {
5325 vde_mode = 0700;
5326 }
5327 ret = net_vde_init(vlan, vde_sock, vde_port, vde_group, vde_mode);
5328 } else
5329 #endif
5330 {
5331 fprintf(stderr, "Unknown network device: %s\n", device);
5332 return -1;
5333 }
5334 if (ret < 0) {
5335 fprintf(stderr, "Could not initialize device '%s'\n", device);
5336 }
5337
5338 return ret;
5339 }
5340
5341 static int net_client_parse(const char *str)
5342 {
5343 const char *p;
5344 char *q;
5345 char device[64];
5346
5347 p = str;
5348 q = device;
5349 while (*p != '\0' && *p != ',') {
5350 if ((q - device) < sizeof(device) - 1)
5351 *q++ = *p;
5352 p++;
5353 }
5354 *q = '\0';
5355 if (*p == ',')
5356 p++;
5357
5358 return net_client_init(device, p);
5359 }
5360
5361 void do_info_network(void)
5362 {
5363 VLANState *vlan;
5364 VLANClientState *vc;
5365
5366 for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) {
5367 term_printf("VLAN %d devices:\n", vlan->id);
5368 for(vc = vlan->first_client; vc != NULL; vc = vc->next)
5369 term_printf(" %s\n", vc->info_str);
5370 }
5371 }
5372
5373 #define HD_ALIAS "index=%d,media=disk"
5374 #ifdef TARGET_PPC
5375 #define CDROM_ALIAS "index=1,media=cdrom"
5376 #else
5377 #define CDROM_ALIAS "index=2,media=cdrom"
5378 #endif
5379 #define FD_ALIAS "index=%d,if=floppy"
5380 #define PFLASH_ALIAS "if=pflash"
5381 #define MTD_ALIAS "if=mtd"
5382 #define SD_ALIAS "index=0,if=sd"
5383
5384 static int drive_add(const char *file, const char *fmt, ...)
5385 {
5386 va_list ap;
5387
5388 if (nb_drives_opt >= MAX_DRIVES) {
5389 fprintf(stderr, "qemu: too many drives\n");
5390 exit(1);
5391 }
5392
5393 drives_opt[nb_drives_opt].file = file;
5394 va_start(ap, fmt);
5395 vsnprintf(drives_opt[nb_drives_opt].opt,
5396 sizeof(drives_opt[0].opt), fmt, ap);
5397 va_end(ap);
5398
5399 return nb_drives_opt++;
5400 }
5401
5402 int drive_get_index(BlockInterfaceType type, int bus, int unit)
5403 {
5404 int index;
5405
5406 /* seek interface, bus and unit */
5407
5408 for (index = 0; index < nb_drives; index++)
5409 if (drives_table[index].type == type &&
5410 drives_table[index].bus == bus &&
5411 drives_table[index].unit == unit)
5412 return index;
5413
5414 return -1;
5415 }
5416
5417 int drive_get_max_bus(BlockInterfaceType type)
5418 {
5419 int max_bus;
5420 int index;
5421
5422 max_bus = -1;
5423 for (index = 0; index < nb_drives; index++) {
5424 if(drives_table[index].type == type &&
5425 drives_table[index].bus > max_bus)
5426 max_bus = drives_table[index].bus;
5427 }
5428 return max_bus;
5429 }
5430
5431 static void bdrv_format_print(void *opaque, const char *name)
5432 {
5433 fprintf(stderr, " %s", name);
5434 }
5435
5436 static int drive_init(struct drive_opt *arg, int snapshot,
5437 QEMUMachine *machine)
5438 {
5439 char buf[128];
5440 char file[1024];
5441 char devname[128];
5442 const char *mediastr = "";
5443 BlockInterfaceType type;
5444 enum { MEDIA_DISK, MEDIA_CDROM } media;
5445 int bus_id, unit_id;
5446 int cyls, heads, secs, translation;
5447 BlockDriverState *bdrv;
5448 BlockDriver *drv = NULL;
5449 int max_devs;
5450 int index;
5451 int cache;
5452 int bdrv_flags;
5453 char *str = arg->opt;
5454 char *params[] = { "bus", "unit", "if", "index", "cyls", "heads",
5455 "secs", "trans", "media", "snapshot", "file",
5456 "cache", "format", NULL };
5457
5458 if (check_params(buf, sizeof(buf), params, str) < 0) {
5459 fprintf(stderr, "qemu: unknown parameter '%s' in '%s'\n",
5460 buf, str);
5461 return -1;
5462 }
5463
5464 file[0] = 0;
5465 cyls = heads = secs = 0;
5466 bus_id = 0;
5467 unit_id = -1;
5468 translation = BIOS_ATA_TRANSLATION_AUTO;
5469 index = -1;
5470 cache = 1;
5471
5472 if (!strcmp(machine->name, "realview") ||
5473 !strcmp(machine->name, "SS-5") ||
5474 !strcmp(machine->name, "SS-10") ||
5475 !strcmp(machine->name, "SS-600MP") ||
5476 !strcmp(machine->name, "versatilepb") ||
5477 !strcmp(machine->name, "versatileab")) {
5478 type = IF_SCSI;
5479 max_devs = MAX_SCSI_DEVS;
5480 pstrcpy(devname, sizeof(devname), "scsi");
5481 } else {
5482 type = IF_IDE;
5483 max_devs = MAX_IDE_DEVS;
5484 pstrcpy(devname, sizeof(devname), "ide");
5485 }
5486 media = MEDIA_DISK;
5487
5488 /* extract parameters */
5489
5490 if (get_param_value(buf, sizeof(buf), "bus", str)) {
5491 bus_id = strtol(buf, NULL, 0);
5492 if (bus_id < 0) {
5493 fprintf(stderr, "qemu: '%s' invalid bus id\n", str);
5494 return -1;
5495 }
5496 }
5497
5498 if (get_param_value(buf, sizeof(buf), "unit", str)) {
5499 unit_id = strtol(buf, NULL, 0);
5500 if (unit_id < 0) {
5501 fprintf(stderr, "qemu: '%s' invalid unit id\n", str);
5502 return -1;
5503 }
5504 }
5505
5506 if (get_param_value(buf, sizeof(buf), "if", str)) {
5507 pstrcpy(devname, sizeof(devname), buf);
5508 if (!strcmp(buf, "ide")) {
5509 type = IF_IDE;
5510 max_devs = MAX_IDE_DEVS;
5511 } else if (!strcmp(buf, "scsi")) {
5512 type = IF_SCSI;
5513 max_devs = MAX_SCSI_DEVS;
5514 } else if (!strcmp(buf, "floppy")) {
5515 type = IF_FLOPPY;
5516 max_devs = 0;
5517 } else if (!strcmp(buf, "pflash")) {
5518 type = IF_PFLASH;
5519 max_devs = 0;
5520 } else if (!strcmp(buf, "mtd")) {
5521 type = IF_MTD;
5522 max_devs = 0;
5523 } else if (!strcmp(buf, "sd")) {
5524 type = IF_SD;
5525 max_devs = 0;
5526 } else {
5527 fprintf(stderr, "qemu: '%s' unsupported bus type '%s'\n", str, buf);
5528 return -1;
5529 }
5530 }
5531
5532 if (get_param_value(buf, sizeof(buf), "index", str)) {
5533 index = strtol(buf, NULL, 0);
5534 if (index < 0) {
5535 fprintf(stderr, "qemu: '%s' invalid index\n", str);
5536 return -1;
5537 }
5538 }
5539
5540 if (get_param_value(buf, sizeof(buf), "cyls", str)) {
5541 cyls = strtol(buf, NULL, 0);
5542 }
5543
5544 if (get_param_value(buf, sizeof(buf), "heads", str)) {
5545 heads = strtol(buf, NULL, 0);
5546 }
5547
5548 if (get_param_value(buf, sizeof(buf), "secs", str)) {
5549 secs = strtol(buf, NULL, 0);
5550 }
5551
5552 if (cyls || heads || secs) {
5553 if (cyls < 1 || cyls > 16383) {
5554 fprintf(stderr, "qemu: '%s' invalid physical cyls number\n", str);
5555 return -1;
5556 }
5557 if (heads < 1 || heads > 16) {
5558 fprintf(stderr, "qemu: '%s' invalid physical heads number\n", str);
5559 return -1;
5560 }
5561 if (secs < 1 || secs > 63) {
5562 fprintf(stderr, "qemu: '%s' invalid physical secs number\n", str);
5563 return -1;
5564 }
5565 }
5566
5567 if (get_param_value(buf, sizeof(buf), "trans", str)) {
5568 if (!cyls) {
5569 fprintf(stderr,
5570 "qemu: '%s' trans must be used with cyls,heads and secs\n",
5571 str);
5572 return -1;
5573 }
5574 if (!strcmp(buf, "none"))
5575 translation = BIOS_ATA_TRANSLATION_NONE;
5576 else if (!strcmp(buf, "lba"))
5577 translation = BIOS_ATA_TRANSLATION_LBA;
5578 else if (!strcmp(buf, "auto"))
5579 translation = BIOS_ATA_TRANSLATION_AUTO;
5580 else {
5581 fprintf(stderr, "qemu: '%s' invalid translation type\n", str);
5582 return -1;
5583 }
5584 }
5585
5586 if (get_param_value(buf, sizeof(buf), "media", str)) {
5587 if (!strcmp(buf, "disk")) {
5588 media = MEDIA_DISK;
5589 } else if (!strcmp(buf, "cdrom")) {
5590 if (cyls || secs || heads) {
5591 fprintf(stderr,
5592 "qemu: '%s' invalid physical CHS format\n", str);
5593 return -1;
5594 }
5595 media = MEDIA_CDROM;
5596 } else {
5597 fprintf(stderr, "qemu: '%s' invalid media\n", str);
5598 return -1;
5599 }
5600 }
5601
5602 if (get_param_value(buf, sizeof(buf), "snapshot", str)) {
5603 if (!strcmp(buf, "on"))
5604 snapshot = 1;
5605 else if (!strcmp(buf, "off"))
5606 snapshot = 0;
5607 else {
5608 fprintf(stderr, "qemu: '%s' invalid snapshot option\n", str);
5609 return -1;
5610 }
5611 }
5612
5613 if (get_param_value(buf, sizeof(buf), "cache", str)) {
5614 if (!strcmp(buf, "off"))
5615 cache = 0;
5616 else if (!strcmp(buf, "on"))
5617 cache = 1;
5618 else {
5619 fprintf(stderr, "qemu: invalid cache option\n");
5620 return -1;
5621 }
5622 }
5623
5624 if (get_param_value(buf, sizeof(buf), "format", str)) {
5625 if (strcmp(buf, "?") == 0) {
5626 fprintf(stderr, "qemu: Supported formats:");
5627 bdrv_iterate_format(bdrv_format_print, NULL);
5628 fprintf(stderr, "\n");
5629 return -1;
5630 }
5631 drv = bdrv_find_format(buf);
5632 if (!drv) {
5633 fprintf(stderr, "qemu: '%s' invalid format\n", buf);
5634 return -1;
5635 }
5636 }
5637
5638 if (arg->file == NULL)
5639 get_param_value(file, sizeof(file), "file", str);
5640 else
5641 pstrcpy(file, sizeof(file), arg->file);
5642
5643 /* compute bus and unit according index */
5644
5645 if (index != -1) {
5646 if (bus_id != 0 || unit_id != -1) {
5647 fprintf(stderr,
5648 "qemu: '%s' index cannot be used with bus and unit\n", str);
5649 return -1;
5650 }
5651 if (max_devs == 0)
5652 {
5653 unit_id = index;
5654 bus_id = 0;
5655 } else {
5656 unit_id = index % max_devs;
5657 bus_id = index / max_devs;
5658 }
5659 }
5660
5661 /* if user doesn't specify a unit_id,
5662 * try to find the first free
5663 */
5664
5665 if (unit_id == -1) {
5666 unit_id = 0;
5667 while (drive_get_index(type, bus_id, unit_id) != -1) {
5668 unit_id++;
5669 if (max_devs && unit_id >= max_devs) {
5670 unit_id -= max_devs;
5671 bus_id++;
5672 }
5673 }
5674 }
5675
5676 /* check unit id */
5677
5678 if (max_devs && unit_id >= max_devs) {
5679 fprintf(stderr, "qemu: '%s' unit %d too big (max is %d)\n",
5680 str, unit_id, max_devs - 1);
5681 return -1;
5682 }
5683
5684 /*
5685 * ignore multiple definitions
5686 */
5687
5688 if (drive_get_index(type, bus_id, unit_id) != -1)
5689 return 0;
5690
5691 /* init */
5692
5693 if (type == IF_IDE || type == IF_SCSI)
5694 mediastr = (media == MEDIA_CDROM) ? "-cd" : "-hd";
5695 if (max_devs)
5696 snprintf(buf, sizeof(buf), "%s%i%s%i",
5697 devname, bus_id, mediastr, unit_id);
5698 else
5699 snprintf(buf, sizeof(buf), "%s%s%i",
5700 devname, mediastr, unit_id);
5701 bdrv = bdrv_new(buf);
5702 drives_table[nb_drives].bdrv = bdrv;
5703 drives_table[nb_drives].type = type;
5704 drives_table[nb_drives].bus = bus_id;
5705 drives_table[nb_drives].unit = unit_id;
5706 nb_drives++;
5707
5708 switch(type) {
5709 case IF_IDE:
5710 case IF_SCSI:
5711 switch(media) {
5712 case MEDIA_DISK:
5713 if (cyls != 0) {
5714 bdrv_set_geometry_hint(bdrv, cyls, heads, secs);
5715 bdrv_set_translation_hint(bdrv, translation);
5716 }
5717 break;
5718 case MEDIA_CDROM:
5719 bdrv_set_type_hint(bdrv, BDRV_TYPE_CDROM);
5720 break;
5721 }
5722 break;
5723 case IF_SD:
5724 /* FIXME: This isn't really a floppy, but it's a reasonable
5725 approximation. */
5726 case IF_FLOPPY:
5727 bdrv_set_type_hint(bdrv, BDRV_TYPE_FLOPPY);
5728 break;
5729 case IF_PFLASH:
5730 case IF_MTD:
5731 break;
5732 }
5733 if (!file[0])
5734 return 0;
5735 bdrv_flags = 0;
5736 if (snapshot)
5737 bdrv_flags |= BDRV_O_SNAPSHOT;
5738 if (!cache)
5739 bdrv_flags |= BDRV_O_DIRECT;
5740 if (bdrv_open2(bdrv, file, bdrv_flags, drv) < 0 || qemu_key_check(bdrv, file)) {
5741 fprintf(stderr, "qemu: could not open disk image %s\n",
5742 file);
5743 return -1;
5744 }
5745 return 0;
5746 }
5747
5748 /***********************************************************/
5749 /* USB devices */
5750
5751 static USBPort *used_usb_ports;
5752 static USBPort *free_usb_ports;
5753
5754 /* ??? Maybe change this to register a hub to keep track of the topology. */
5755 void qemu_register_usb_port(USBPort *port, void *opaque, int index,
5756 usb_attachfn attach)
5757 {
5758 port->opaque = opaque;
5759 port->index = index;
5760 port->attach = attach;
5761 port->next = free_usb_ports;
5762 free_usb_ports = port;
5763 }
5764
5765 int usb_device_add_dev(USBDevice *dev)
5766 {
5767 USBPort *port;
5768
5769 /* Find a USB port to add the device to. */
5770 port = free_usb_ports;
5771 if (!port->next) {
5772 USBDevice *hub;
5773
5774 /* Create a new hub and chain it on. */
5775 free_usb_ports = NULL;
5776 port->next = used_usb_ports;
5777 used_usb_ports = port;
5778
5779 hub = usb_hub_init(VM_USB_HUB_SIZE);
5780 usb_attach(port, hub);
5781 port = free_usb_ports;
5782 }
5783
5784 free_usb_ports = port->next;
5785 port->next = used_usb_ports;
5786 used_usb_ports = port;
5787 usb_attach(port, dev);
5788 return 0;
5789 }
5790
5791 static int usb_device_add(const char *devname)
5792 {
5793 const char *p;
5794 USBDevice *dev;
5795 USBPort *port;
5796
5797 if (!free_usb_ports)
5798 return -1;
5799
5800 if (strstart(devname, "host:", &p)) {
5801 dev = usb_host_device_open(p);
5802 } else if (!strcmp(devname, "mouse")) {
5803 dev = usb_mouse_init();
5804 } else if (!strcmp(devname, "tablet")) {
5805 dev = usb_tablet_init();
5806 } else if (!strcmp(devname, "keyboard")) {
5807 dev = usb_keyboard_init();
5808 } else if (strstart(devname, "disk:", &p)) {
5809 dev = usb_msd_init(p);
5810 } else if (!strcmp(devname, "wacom-tablet")) {
5811 dev = usb_wacom_init();
5812 } else if (strstart(devname, "serial:", &p)) {
5813 dev = usb_serial_init(p);
5814 #ifdef CONFIG_BRLAPI
5815 } else if (!strcmp(devname, "braille")) {
5816 dev = usb_baum_init();
5817 #endif
5818 } else if (strstart(devname, "net:", &p)) {
5819 int nic = nb_nics;
5820
5821 if (net_client_init("nic", p) < 0)
5822 return -1;
5823 nd_table[nic].model = "usb";
5824 dev = usb_net_init(&nd_table[nic]);
5825 } else {
5826 return -1;
5827 }
5828 if (!dev)
5829 return -1;
5830
5831 return usb_device_add_dev(dev);
5832 }
5833
5834 int usb_device_del_addr(int bus_num, int addr)
5835 {
5836 USBPort *port;
5837 USBPort **lastp;
5838 USBDevice *dev;
5839
5840 if (!used_usb_ports)
5841 return -1;
5842
5843 if (bus_num != 0)
5844 return -1;
5845
5846 lastp = &used_usb_ports;
5847 port = used_usb_ports;
5848 while (port && port->dev->addr != addr) {
5849 lastp = &port->next;
5850 port = port->next;
5851 }
5852
5853 if (!port)
5854 return -1;
5855
5856 dev = port->dev;
5857 *lastp = port->next;
5858 usb_attach(port, NULL);
5859 dev->handle_destroy(dev);
5860 port->next = free_usb_ports;
5861 free_usb_ports = port;
5862 return 0;
5863 }
5864
5865 static int usb_device_del(const char *devname)
5866 {
5867 int bus_num, addr;
5868 const char *p;
5869
5870 if (!used_usb_ports)
5871 return -1;
5872
5873 p = strchr(devname, '.');
5874 if (!p)
5875 return -1;
5876 bus_num = strtoul(devname, NULL, 0);
5877 addr = strtoul(p + 1, NULL, 0);
5878
5879 return usb_device_del_addr(bus_num, addr);
5880 }
5881
5882 void do_usb_add(const char *devname)
5883 {
5884 usb_device_add(devname);
5885 }
5886
5887 void do_usb_del(const char *devname)
5888 {
5889 usb_device_del(devname);
5890 }
5891
5892 void usb_info(void)
5893 {
5894 USBDevice *dev;
5895 USBPort *port;
5896 const char *speed_str;
5897
5898 if (!usb_enabled) {
5899 term_printf("USB support not enabled\n");
5900 return;
5901 }
5902
5903 for (port = used_usb_ports; port; port = port->next) {
5904 dev = port->dev;
5905 if (!dev)
5906 continue;
5907 switch(dev->speed) {
5908 case USB_SPEED_LOW:
5909 speed_str = "1.5";
5910 break;
5911 case USB_SPEED_FULL:
5912 speed_str = "12";
5913 break;
5914 case USB_SPEED_HIGH:
5915 speed_str = "480";
5916 break;
5917 default:
5918 speed_str = "?";
5919 break;
5920 }
5921 term_printf(" Device %d.%d, Speed %s Mb/s, Product %s\n",
5922 0, dev->addr, speed_str, dev->devname);
5923 }
5924 }
5925
5926 /***********************************************************/
5927 /* PCMCIA/Cardbus */
5928
5929 static struct pcmcia_socket_entry_s {
5930 struct pcmcia_socket_s *socket;
5931 struct pcmcia_socket_entry_s *next;
5932 } *pcmcia_sockets = 0;
5933
5934 void pcmcia_socket_register(struct pcmcia_socket_s *socket)
5935 {
5936 struct pcmcia_socket_entry_s *entry;
5937
5938 entry = qemu_malloc(sizeof(struct pcmcia_socket_entry_s));
5939 entry->socket = socket;
5940 entry->next = pcmcia_sockets;
5941 pcmcia_sockets = entry;
5942 }
5943
5944 void pcmcia_socket_unregister(struct pcmcia_socket_s *socket)
5945 {
5946 struct pcmcia_socket_entry_s *entry, **ptr;
5947
5948 ptr = &pcmcia_sockets;
5949 for (entry = *ptr; entry; ptr = &entry->next, entry = *ptr)
5950 if (entry->socket == socket) {
5951 *ptr = entry->next;
5952 qemu_free(entry);
5953 }
5954 }
5955
5956 void pcmcia_info(void)
5957 {
5958 struct pcmcia_socket_entry_s *iter;
5959 if (!pcmcia_sockets)
5960 term_printf("No PCMCIA sockets\n");
5961
5962 for (iter = pcmcia_sockets; iter; iter = iter->next)
5963 term_printf("%s: %s\n", iter->socket->slot_string,
5964 iter->socket->attached ? iter->socket->card_string :
5965 "Empty");
5966 }
5967
5968 /***********************************************************/
5969 /* dumb display */
5970
5971 static void dumb_update(DisplayState *ds, int x, int y, int w, int h)
5972 {
5973 }
5974
5975 static void dumb_resize(DisplayState *ds, int w, int h)
5976 {
5977 }
5978
5979 static void dumb_refresh(DisplayState *ds)
5980 {
5981 #if defined(CONFIG_SDL)
5982 vga_hw_update();
5983 #endif
5984 }
5985
5986 static void dumb_display_init(DisplayState *ds)
5987 {
5988 ds->data = NULL;
5989 ds->linesize = 0;
5990 ds->depth = 0;
5991 ds->dpy_update = dumb_update;
5992 ds->dpy_resize = dumb_resize;
5993 ds->dpy_refresh = dumb_refresh;
5994 ds->gui_timer_interval = 500;
5995 ds->idle = 1;
5996 }
5997
5998 /***********************************************************/
5999 /* I/O handling */
6000
6001 #define MAX_IO_HANDLERS 64
6002
6003 typedef struct IOHandlerRecord {
6004 int fd;
6005 IOCanRWHandler *fd_read_poll;
6006 IOHandler *fd_read;
6007 IOHandler *fd_write;
6008 int deleted;
6009 void *opaque;
6010 /* temporary data */
6011 struct pollfd *ufd;
6012 struct IOHandlerRecord *next;
6013 } IOHandlerRecord;
6014
6015 static IOHandlerRecord *first_io_handler;
6016
6017 /* XXX: fd_read_poll should be suppressed, but an API change is
6018 necessary in the character devices to suppress fd_can_read(). */
6019 int qemu_set_fd_handler2(int fd,
6020 IOCanRWHandler *fd_read_poll,
6021 IOHandler *fd_read,
6022 IOHandler *fd_write,
6023 void *opaque)
6024 {
6025 IOHandlerRecord **pioh, *ioh;
6026
6027 if (!fd_read && !fd_write) {
6028 pioh = &first_io_handler;
6029 for(;;) {
6030 ioh = *pioh;
6031 if (ioh == NULL)
6032 break;
6033 if (ioh->fd == fd) {
6034 ioh->deleted = 1;
6035 break;
6036 }
6037 pioh = &ioh->next;
6038 }
6039 } else {
6040 for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) {
6041 if (ioh->fd == fd)
6042 goto found;
6043 }
6044 ioh = qemu_mallocz(sizeof(IOHandlerRecord));
6045 if (!ioh)
6046 return -1;
6047 ioh->next = first_io_handler;
6048 first_io_handler = ioh;
6049 found:
6050 ioh->fd = fd;
6051 ioh->fd_read_poll = fd_read_poll;
6052 ioh->fd_read = fd_read;
6053 ioh->fd_write = fd_write;
6054 ioh->opaque = opaque;
6055 ioh->deleted = 0;
6056 }
6057 return 0;
6058 }
6059
6060 int qemu_set_fd_handler(int fd,
6061 IOHandler *fd_read,
6062 IOHandler *fd_write,
6063 void *opaque)
6064 {
6065 return qemu_set_fd_handler2(fd, NULL, fd_read, fd_write, opaque);
6066 }
6067
6068 /***********************************************************/
6069 /* Polling handling */
6070
6071 typedef struct PollingEntry {
6072 PollingFunc *func;
6073 void *opaque;
6074 struct PollingEntry *next;
6075 } PollingEntry;
6076
6077 static PollingEntry *first_polling_entry;
6078
6079 int qemu_add_polling_cb(PollingFunc *func, void *opaque)
6080 {
6081 PollingEntry **ppe, *pe;
6082 pe = qemu_mallocz(sizeof(PollingEntry));
6083 if (!pe)
6084 return -1;
6085 pe->func = func;
6086 pe->opaque = opaque;
6087 for(ppe = &first_polling_entry; *ppe != NULL; ppe = &(*ppe)->next);
6088 *ppe = pe;
6089 return 0;
6090 }
6091
6092 void qemu_del_polling_cb(PollingFunc *func, void *opaque)
6093 {
6094 PollingEntry **ppe, *pe;
6095 for(ppe = &first_polling_entry; *ppe != NULL; ppe = &(*ppe)->next) {
6096 pe = *ppe;
6097 if (pe->func == func && pe->opaque == opaque) {
6098 *ppe = pe->next;
6099 qemu_free(pe);
6100 break;
6101 }
6102 }
6103 }
6104
6105 #ifdef _WIN32
6106 /***********************************************************/
6107 /* Wait objects support */
6108 typedef struct WaitObjects {
6109 int num;
6110 HANDLE events[MAXIMUM_WAIT_OBJECTS + 1];
6111 WaitObjectFunc *func[MAXIMUM_WAIT_OBJECTS + 1];
6112 void *opaque[MAXIMUM_WAIT_OBJECTS + 1];
6113 } WaitObjects;
6114
6115 static WaitObjects wait_objects = {0};
6116
6117 int qemu_add_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque)
6118 {
6119 WaitObjects *w = &wait_objects;
6120
6121 if (w->num >= MAXIMUM_WAIT_OBJECTS)
6122 return -1;
6123 w->events[w->num] = handle;
6124 w->func[w->num] = func;
6125 w->opaque[w->num] = opaque;
6126 w->num++;
6127 return 0;
6128 }
6129
6130 void qemu_del_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque)
6131 {
6132 int i, found;
6133 WaitObjects *w = &wait_objects;
6134
6135 found = 0;
6136 for (i = 0; i < w->num; i++) {
6137 if (w->events[i] == handle)
6138 found = 1;
6139 if (found) {
6140 w->events[i] = w->events[i + 1];
6141 w->func[i] = w->func[i + 1];
6142 w->opaque[i] = w->opaque[i + 1];
6143 }
6144 }
6145 if (found)
6146 w->num--;
6147 }
6148 #endif
6149
6150 /***********************************************************/
6151 /* savevm/loadvm support */
6152
6153 #define IO_BUF_SIZE 32768
6154
6155 struct QEMUFile {
6156 FILE *outfile;
6157 BlockDriverState *bs;
6158 int is_file;
6159 int is_writable;
6160 int64_t base_offset;
6161 int64_t buf_offset; /* start of buffer when writing, end of buffer
6162 when reading */
6163 int buf_index;
6164 int buf_size; /* 0 when writing */
6165 uint8_t buf[IO_BUF_SIZE];
6166 };
6167
6168 QEMUFile *qemu_fopen(const char *filename, const char *mode)
6169 {
6170 QEMUFile *f;
6171
6172 f = qemu_mallocz(sizeof(QEMUFile));
6173 if (!f)
6174 return NULL;
6175 if (!strcmp(mode, "wb")) {
6176 f->is_writable = 1;
6177 } else if (!strcmp(mode, "rb")) {
6178 f->is_writable = 0;
6179 } else {
6180 goto fail;
6181 }
6182 f->outfile = fopen(filename, mode);
6183 if (!f->outfile)
6184 goto fail;
6185 f->is_file = 1;
6186 return f;
6187 fail:
6188 if (f->outfile)
6189 fclose(f->outfile);
6190 qemu_free(f);
6191 return NULL;
6192 }
6193
6194 static QEMUFile *qemu_fopen_bdrv(BlockDriverState *bs, int64_t offset, int is_writable)
6195 {
6196 QEMUFile *f;
6197
6198 f = qemu_mallocz(sizeof(QEMUFile));
6199 if (!f)
6200 return NULL;
6201 f->is_file = 0;
6202 f->bs = bs;
6203 f->is_writable = is_writable;
6204 f->base_offset = offset;
6205 return f;
6206 }
6207
6208 void qemu_fflush(QEMUFile *f)
6209 {
6210 if (!f->is_writable)
6211 return;
6212 if (f->buf_index > 0) {
6213 if (f->is_file) {
6214 fseek(f->outfile, f->buf_offset, SEEK_SET);
6215 fwrite(f->buf, 1, f->buf_index, f->outfile);
6216 } else {
6217 bdrv_pwrite(f->bs, f->base_offset + f->buf_offset,
6218 f->buf, f->buf_index);
6219 }
6220 f->buf_offset += f->buf_index;
6221 f->buf_index = 0;
6222 }
6223 }
6224
6225 static void qemu_fill_buffer(QEMUFile *f)
6226 {
6227 int len;
6228
6229 if (f->is_writable)
6230 return;
6231 if (f->is_file) {
6232 fseek(f->outfile, f->buf_offset, SEEK_SET);
6233 len = fread(f->buf, 1, IO_BUF_SIZE, f->outfile);
6234 if (len < 0)
6235 len = 0;
6236 } else {
6237 len = bdrv_pread(f->bs, f->base_offset + f->buf_offset,
6238 f->buf, IO_BUF_SIZE);
6239 if (len < 0)
6240 len = 0;
6241 }
6242 f->buf_index = 0;
6243 f->buf_size = len;
6244 f->buf_offset += len;
6245 }
6246
6247 void qemu_fclose(QEMUFile *f)
6248 {
6249 if (f->is_writable)
6250 qemu_fflush(f);
6251 if (f->is_file) {
6252 fclose(f->outfile);
6253 }
6254 qemu_free(f);
6255 }
6256
6257 void qemu_put_buffer(QEMUFile *f, const uint8_t *buf, int size)
6258 {
6259 int l;
6260 while (size > 0) {
6261 l = IO_BUF_SIZE - f->buf_index;
6262 if (l > size)
6263 l = size;
6264 memcpy(f->buf + f->buf_index, buf, l);
6265 f->buf_index += l;
6266 buf += l;
6267 size -= l;
6268 if (f->buf_index >= IO_BUF_SIZE)
6269 qemu_fflush(f);
6270 }
6271 }
6272
6273 void qemu_put_byte(QEMUFile *f, int v)
6274 {
6275 f->buf[f->buf_index++] = v;
6276 if (f->buf_index >= IO_BUF_SIZE)
6277 qemu_fflush(f);
6278 }
6279
6280 int qemu_get_buffer(QEMUFile *f, uint8_t *buf, int size1)
6281 {
6282 int size, l;
6283
6284 size = size1;
6285 while (size > 0) {
6286 l = f->buf_size - f->buf_index;
6287 if (l == 0) {
6288 qemu_fill_buffer(f);
6289 l = f->buf_size - f->buf_index;
6290 if (l == 0)
6291 break;
6292 }
6293 if (l > size)
6294 l = size;
6295 memcpy(buf, f->buf + f->buf_index, l);
6296 f->buf_index += l;
6297 buf += l;
6298 size -= l;
6299 }
6300 return size1 - size;
6301 }
6302
6303 int qemu_get_byte(QEMUFile *f)
6304 {
6305 if (f->buf_index >= f->buf_size) {
6306 qemu_fill_buffer(f);
6307 if (f->buf_index >= f->buf_size)
6308 return 0;
6309 }
6310 return f->buf[f->buf_index++];
6311 }
6312
6313 int64_t qemu_ftell(QEMUFile *f)
6314 {
6315 return f->buf_offset - f->buf_size + f->buf_index;
6316 }
6317
6318 int64_t qemu_fseek(QEMUFile *f, int64_t pos, int whence)
6319 {
6320 if (whence == SEEK_SET) {
6321 /* nothing to do */
6322 } else if (whence == SEEK_CUR) {
6323 pos += qemu_ftell(f);
6324 } else {
6325 /* SEEK_END not supported */
6326 return -1;
6327 }
6328 if (f->is_writable) {
6329 qemu_fflush(f);
6330 f->buf_offset = pos;
6331 } else {
6332 f->buf_offset = pos;
6333 f->buf_index = 0;
6334 f->buf_size = 0;
6335 }
6336 return pos;
6337 }
6338
6339 void qemu_put_be16(QEMUFile *f, unsigned int v)
6340 {
6341 qemu_put_byte(f, v >> 8);
6342 qemu_put_byte(f, v);
6343 }
6344
6345 void qemu_put_be32(QEMUFile *f, unsigned int v)
6346 {
6347 qemu_put_byte(f, v >> 24);
6348 qemu_put_byte(f, v >> 16);
6349 qemu_put_byte(f, v >> 8);
6350 qemu_put_byte(f, v);
6351 }
6352
6353 void qemu_put_be64(QEMUFile *f, uint64_t v)
6354 {
6355 qemu_put_be32(f, v >> 32);
6356 qemu_put_be32(f, v);
6357 }
6358
6359 unsigned int qemu_get_be16(QEMUFile *f)
6360 {
6361 unsigned int v;
6362 v = qemu_get_byte(f) << 8;
6363 v |= qemu_get_byte(f);
6364 return v;
6365 }
6366
6367 unsigned int qemu_get_be32(QEMUFile *f)
6368 {
6369 unsigned int v;
6370 v = qemu_get_byte(f) << 24;
6371 v |= qemu_get_byte(f) << 16;
6372 v |= qemu_get_byte(f) << 8;
6373 v |= qemu_get_byte(f);
6374 return v;
6375 }
6376
6377 uint64_t qemu_get_be64(QEMUFile *f)
6378 {
6379 uint64_t v;
6380 v = (uint64_t)qemu_get_be32(f) << 32;
6381 v |= qemu_get_be32(f);
6382 return v;
6383 }
6384
6385 typedef struct SaveStateEntry {
6386 char idstr[256];
6387 int instance_id;
6388 int version_id;
6389 SaveStateHandler *save_state;
6390 LoadStateHandler *load_state;
6391 void *opaque;
6392 struct SaveStateEntry *next;
6393 } SaveStateEntry;
6394
6395 static SaveStateEntry *first_se;
6396
6397 /* TODO: Individual devices generally have very little idea about the rest
6398 of the system, so instance_id should be removed/replaced.
6399 Meanwhile pass -1 as instance_id if you do not already have a clearly
6400 distinguishing id for all instances of your device class. */
6401 int register_savevm(const char *idstr,
6402 int instance_id,
6403 int version_id,
6404 SaveStateHandler *save_state,
6405 LoadStateHandler *load_state,
6406 void *opaque)
6407 {
6408 SaveStateEntry *se, **pse;
6409
6410 se = qemu_malloc(sizeof(SaveStateEntry));
6411 if (!se)
6412 return -1;
6413 pstrcpy(se->idstr, sizeof(se->idstr), idstr);
6414 se->instance_id = (instance_id == -1) ? 0 : instance_id;
6415 se->version_id = version_id;
6416 se->save_state = save_state;
6417 se->load_state = load_state;
6418 se->opaque = opaque;
6419 se->next = NULL;
6420
6421 /* add at the end of list */
6422 pse = &first_se;
6423 while (*pse != NULL) {
6424 if (instance_id == -1
6425 && strcmp(se->idstr, (*pse)->idstr) == 0
6426 && se->instance_id <= (*pse)->instance_id)
6427 se->instance_id = (*pse)->instance_id + 1;
6428 pse = &(*pse)->next;
6429 }
6430 *pse = se;
6431 return 0;
6432 }
6433
6434 #define QEMU_VM_FILE_MAGIC 0x5145564d
6435 #define QEMU_VM_FILE_VERSION 0x00000002
6436
6437 static int qemu_savevm_state(QEMUFile *f)
6438 {
6439 SaveStateEntry *se;
6440 int len, ret;
6441 int64_t cur_pos, len_pos, total_len_pos;
6442
6443 qemu_put_be32(f, QEMU_VM_FILE_MAGIC);
6444 qemu_put_be32(f, QEMU_VM_FILE_VERSION);
6445 total_len_pos = qemu_ftell(f);
6446 qemu_put_be64(f, 0); /* total size */
6447
6448 for(se = first_se; se != NULL; se = se->next) {
6449 if (se->save_state == NULL)
6450 /* this one has a loader only, for backwards compatibility */
6451 continue;
6452
6453 /* ID string */
6454 len = strlen(se->idstr);
6455 qemu_put_byte(f, len);
6456 qemu_put_buffer(f, (uint8_t *)se->idstr, len);
6457
6458 qemu_put_be32(f, se->instance_id);
6459 qemu_put_be32(f, se->version_id);
6460
6461 /* record size: filled later */
6462 len_pos = qemu_ftell(f);
6463 qemu_put_be32(f, 0);
6464 se->save_state(f, se->opaque);
6465
6466 /* fill record size */
6467 cur_pos = qemu_ftell(f);
6468 len = cur_pos - len_pos - 4;
6469 qemu_fseek(f, len_pos, SEEK_SET);
6470 qemu_put_be32(f, len);
6471 qemu_fseek(f, cur_pos, SEEK_SET);
6472 }
6473 cur_pos = qemu_ftell(f);
6474 qemu_fseek(f, total_len_pos, SEEK_SET);
6475 qemu_put_be64(f, cur_pos - total_len_pos - 8);
6476 qemu_fseek(f, cur_pos, SEEK_SET);
6477
6478 ret = 0;
6479 return ret;
6480 }
6481
6482 static SaveStateEntry *find_se(const char *idstr, int instance_id)
6483 {
6484 SaveStateEntry *se;
6485
6486 for(se = first_se; se != NULL; se = se->next) {
6487 if (!strcmp(se->idstr, idstr) &&
6488 instance_id == se->instance_id)
6489 return se;
6490 }
6491 return NULL;
6492 }
6493
6494 static int qemu_loadvm_state(QEMUFile *f)
6495 {
6496 SaveStateEntry *se;
6497 int len, ret, instance_id, record_len, version_id;
6498 int64_t total_len, end_pos, cur_pos;
6499 unsigned int v;
6500 char idstr[256];
6501
6502 v = qemu_get_be32(f);
6503 if (v != QEMU_VM_FILE_MAGIC)
6504 goto fail;
6505 v = qemu_get_be32(f);
6506 if (v != QEMU_VM_FILE_VERSION) {
6507 fail:
6508 ret = -1;
6509 goto the_end;
6510 }
6511 total_len = qemu_get_be64(f);
6512 end_pos = total_len + qemu_ftell(f);
6513 for(;;) {
6514 if (qemu_ftell(f) >= end_pos)
6515 break;
6516 len = qemu_get_byte(f);
6517 qemu_get_buffer(f, (uint8_t *)idstr, len);
6518 idstr[len] = '\0';
6519 instance_id = qemu_get_be32(f);
6520 version_id = qemu_get_be32(f);
6521 record_len = qemu_get_be32(f);
6522 #if 0
6523 printf("idstr=%s instance=0x%x version=%d len=%d\n",
6524 idstr, instance_id, version_id, record_len);
6525 #endif
6526 cur_pos = qemu_ftell(f);
6527 se = find_se(idstr, instance_id);
6528 if (!se) {
6529 fprintf(stderr, "qemu: warning: instance 0x%x of device '%s' not present in current VM\n",
6530 instance_id, idstr);
6531 } else {
6532 ret = se->load_state(f, se->opaque, version_id);
6533 if (ret < 0) {
6534 fprintf(stderr, "qemu: warning: error while loading state for instance 0x%x of device '%s'\n",
6535 instance_id, idstr);
6536 }
6537 }
6538 /* always seek to exact end of record */
6539 qemu_fseek(f, cur_pos + record_len, SEEK_SET);
6540 }
6541 ret = 0;
6542 the_end:
6543 return ret;
6544 }
6545
6546 /* device can contain snapshots */
6547 static int bdrv_can_snapshot(BlockDriverState *bs)
6548 {
6549 return (bs &&
6550 !bdrv_is_removable(bs) &&
6551 !bdrv_is_read_only(bs));
6552 }
6553
6554 /* device must be snapshots in order to have a reliable snapshot */
6555 static int bdrv_has_snapshot(BlockDriverState *bs)
6556 {
6557 return (bs &&
6558 !bdrv_is_removable(bs) &&
6559 !bdrv_is_read_only(bs));
6560 }
6561
6562 static BlockDriverState *get_bs_snapshots(void)
6563 {
6564 BlockDriverState *bs;
6565 int i;
6566
6567 if (bs_snapshots)
6568 return bs_snapshots;
6569 for(i = 0; i <= nb_drives; i++) {
6570 bs = drives_table[i].bdrv;
6571 if (bdrv_can_snapshot(bs))
6572 goto ok;
6573 }
6574 return NULL;
6575 ok:
6576 bs_snapshots = bs;
6577 return bs;
6578 }
6579
6580 static int bdrv_snapshot_find(BlockDriverState *bs, QEMUSnapshotInfo *sn_info,
6581 const char *name)
6582 {
6583 QEMUSnapshotInfo *sn_tab, *sn;
6584 int nb_sns, i, ret;
6585
6586 ret = -ENOENT;
6587 nb_sns = bdrv_snapshot_list(bs, &sn_tab);
6588 if (nb_sns < 0)
6589 return ret;
6590 for(i = 0; i < nb_sns; i++) {
6591 sn = &sn_tab[i];
6592 if (!strcmp(sn->id_str, name) || !strcmp(sn->name, name)) {
6593 *sn_info = *sn;
6594 ret = 0;
6595 break;
6596 }
6597 }
6598 qemu_free(sn_tab);
6599 return ret;
6600 }
6601
6602 void do_savevm(const char *name)
6603 {
6604 BlockDriverState *bs, *bs1;
6605 QEMUSnapshotInfo sn1, *sn = &sn1, old_sn1, *old_sn = &old_sn1;
6606 int must_delete, ret, i;
6607 BlockDriverInfo bdi1, *bdi = &bdi1;
6608 QEMUFile *f;
6609 int saved_vm_running;
6610 #ifdef _WIN32
6611 struct _timeb tb;
6612 #else
6613 struct timeval tv;
6614 #endif
6615
6616 bs = get_bs_snapshots();
6617 if (!bs) {
6618 term_printf("No block device can accept snapshots\n");
6619 return;
6620 }
6621
6622 /* ??? Should this occur after vm_stop? */
6623 qemu_aio_flush();
6624
6625 saved_vm_running = vm_running;
6626 vm_stop(0);
6627
6628 must_delete = 0;
6629 if (name) {
6630 ret = bdrv_snapshot_find(bs, old_sn, name);
6631 if (ret >= 0) {
6632 must_delete = 1;
6633 }
6634 }
6635 memset(sn, 0, sizeof(*sn));
6636 if (must_delete) {
6637 pstrcpy(sn->name, sizeof(sn->name), old_sn->name);
6638 pstrcpy(sn->id_str, sizeof(sn->id_str), old_sn->id_str);
6639 } else {
6640 if (name)
6641 pstrcpy(sn->name, sizeof(sn->name), name);
6642 }
6643
6644 /* fill auxiliary fields */
6645 #ifdef _WIN32
6646 _ftime(&tb);
6647 sn->date_sec = tb.time;
6648 sn->date_nsec = tb.millitm * 1000000;
6649 #else
6650 gettimeofday(&tv, NULL);
6651 sn->date_sec = tv.tv_sec;
6652 sn->date_nsec = tv.tv_usec * 1000;
6653 #endif
6654 sn->vm_clock_nsec = qemu_get_clock(vm_clock);
6655
6656 if (bdrv_get_info(bs, bdi) < 0 || bdi->vm_state_offset <= 0) {
6657 term_printf("Device %s does not support VM state snapshots\n",
6658 bdrv_get_device_name(bs));
6659 goto the_end;
6660 }
6661
6662 /* save the VM state */
6663 f = qemu_fopen_bdrv(bs, bdi->vm_state_offset, 1);
6664 if (!f) {
6665 term_printf("Could not open VM state file\n");
6666 goto the_end;
6667 }
6668 ret = qemu_savevm_state(f);
6669 sn->vm_state_size = qemu_ftell(f);
6670 qemu_fclose(f);
6671 if (ret < 0) {
6672 term_printf("Error %d while writing VM\n", ret);
6673 goto the_end;
6674 }
6675
6676 /* create the snapshots */
6677
6678 for(i = 0; i < nb_drives; i++) {
6679 bs1 = drives_table[i].bdrv;
6680 if (bdrv_has_snapshot(bs1)) {
6681 if (must_delete) {
6682 ret = bdrv_snapshot_delete(bs1, old_sn->id_str);
6683 if (ret < 0) {
6684 term_printf("Error while deleting snapshot on '%s'\n",
6685 bdrv_get_device_name(bs1));
6686 }
6687 }
6688 ret = bdrv_snapshot_create(bs1, sn);
6689 if (ret < 0) {
6690 term_printf("Error while creating snapshot on '%s'\n",
6691 bdrv_get_device_name(bs1));
6692 }
6693 }
6694 }
6695
6696 the_end:
6697 if (saved_vm_running)
6698 vm_start();
6699 }
6700
6701 void do_loadvm(const char *name)
6702 {
6703 BlockDriverState *bs, *bs1;
6704 BlockDriverInfo bdi1, *bdi = &bdi1;
6705 QEMUFile *f;
6706 int i, ret;
6707 int saved_vm_running;
6708
6709 bs = get_bs_snapshots();
6710 if (!bs) {
6711 term_printf("No block device supports snapshots\n");
6712 return;
6713 }
6714
6715 /* Flush all IO requests so they don't interfere with the new state. */
6716 qemu_aio_flush();
6717
6718 saved_vm_running = vm_running;
6719 vm_stop(0);
6720
6721 for(i = 0; i <= nb_drives; i++) {
6722 bs1 = drives_table[i].bdrv;
6723 if (bdrv_has_snapshot(bs1)) {
6724 ret = bdrv_snapshot_goto(bs1, name);
6725 if (ret < 0) {
6726 if (bs != bs1)
6727 term_printf("Warning: ");
6728 switch(ret) {
6729 case -ENOTSUP:
6730 term_printf("Snapshots not supported on device '%s'\n",
6731 bdrv_get_device_name(bs1));
6732 break;
6733 case -ENOENT:
6734 term_printf("Could not find snapshot '%s' on device '%s'\n",
6735 name, bdrv_get_device_name(bs1));
6736 break;
6737 default:
6738 term_printf("Error %d while activating snapshot on '%s'\n",
6739 ret, bdrv_get_device_name(bs1));
6740 break;
6741 }
6742 /* fatal on snapshot block device */
6743 if (bs == bs1)
6744 goto the_end;
6745 }
6746 }
6747 }
6748
6749 if (bdrv_get_info(bs, bdi) < 0 || bdi->vm_state_offset <= 0) {
6750 term_printf("Device %s does not support VM state snapshots\n",
6751 bdrv_get_device_name(bs));
6752 return;
6753 }
6754
6755 /* restore the VM state */
6756 f = qemu_fopen_bdrv(bs, bdi->vm_state_offset, 0);
6757 if (!f) {
6758 term_printf("Could not open VM state file\n");
6759 goto the_end;
6760 }
6761 ret = qemu_loadvm_state(f);
6762 qemu_fclose(f);
6763 if (ret < 0) {
6764 term_printf("Error %d while loading VM state\n", ret);
6765 }
6766 the_end:
6767 if (saved_vm_running)
6768 vm_start();
6769 }
6770
6771 void do_delvm(const char *name)
6772 {
6773 BlockDriverState *bs, *bs1;
6774 int i, ret;
6775
6776 bs = get_bs_snapshots();
6777 if (!bs) {
6778 term_printf("No block device supports snapshots\n");
6779 return;
6780 }
6781
6782 for(i = 0; i <= nb_drives; i++) {
6783 bs1 = drives_table[i].bdrv;
6784 if (bdrv_has_snapshot(bs1)) {
6785 ret = bdrv_snapshot_delete(bs1, name);
6786 if (ret < 0) {
6787 if (ret == -ENOTSUP)
6788 term_printf("Snapshots not supported on device '%s'\n",
6789 bdrv_get_device_name(bs1));
6790 else
6791 term_printf("Error %d while deleting snapshot on '%s'\n",
6792 ret, bdrv_get_device_name(bs1));
6793 }
6794 }
6795 }
6796 }
6797
6798 void do_info_snapshots(void)
6799 {
6800 BlockDriverState *bs, *bs1;
6801 QEMUSnapshotInfo *sn_tab, *sn;
6802 int nb_sns, i;
6803 char buf[256];
6804
6805 bs = get_bs_snapshots();
6806 if (!bs) {
6807 term_printf("No available block device supports snapshots\n");
6808 return;
6809 }
6810 term_printf("Snapshot devices:");
6811 for(i = 0; i <= nb_drives; i++) {
6812 bs1 = drives_table[i].bdrv;
6813 if (bdrv_has_snapshot(bs1)) {
6814 if (bs == bs1)
6815 term_printf(" %s", bdrv_get_device_name(bs1));
6816 }
6817 }
6818 term_printf("\n");
6819
6820 nb_sns = bdrv_snapshot_list(bs, &sn_tab);
6821 if (nb_sns < 0) {
6822 term_printf("bdrv_snapshot_list: error %d\n", nb_sns);
6823 return;
6824 }
6825 term_printf("Snapshot list (from %s):\n", bdrv_get_device_name(bs));
6826 term_printf("%s\n", bdrv_snapshot_dump(buf, sizeof(buf), NULL));
6827 for(i = 0; i < nb_sns; i++) {
6828 sn = &sn_tab[i];
6829 term_printf("%s\n", bdrv_snapshot_dump(buf, sizeof(buf), sn));
6830 }
6831 qemu_free(sn_tab);
6832 }
6833
6834 /***********************************************************/
6835 /* ram save/restore */
6836
6837 static int ram_get_page(QEMUFile *f, uint8_t *buf, int len)
6838 {
6839 int v;
6840
6841 v = qemu_get_byte(f);
6842 switch(v) {
6843 case 0:
6844 if (qemu_get_buffer(f, buf, len) != len)
6845 return -EIO;
6846 break;
6847 case 1:
6848 v = qemu_get_byte(f);
6849 memset(buf, v, len);
6850 break;
6851 default:
6852 return -EINVAL;
6853 }
6854 return 0;
6855 }
6856
6857 static int ram_load_v1(QEMUFile *f, void *opaque)
6858 {
6859 int ret;
6860 ram_addr_t i;
6861
6862 if (qemu_get_be32(f) != phys_ram_size)
6863 return -EINVAL;
6864 for(i = 0; i < phys_ram_size; i+= TARGET_PAGE_SIZE) {
6865 ret = ram_get_page(f, phys_ram_base + i, TARGET_PAGE_SIZE);
6866 if (ret)
6867 return ret;
6868 }
6869 return 0;
6870 }
6871
6872 #define BDRV_HASH_BLOCK_SIZE 1024
6873 #define IOBUF_SIZE 4096
6874 #define RAM_CBLOCK_MAGIC 0xfabe
6875
6876 typedef struct RamCompressState {
6877 z_stream zstream;
6878 QEMUFile *f;
6879 uint8_t buf[IOBUF_SIZE];
6880 } RamCompressState;
6881
6882 static int ram_compress_open(RamCompressState *s, QEMUFile *f)
6883 {
6884 int ret;
6885 memset(s, 0, sizeof(*s));
6886 s->f = f;
6887 ret = deflateInit2(&s->zstream, 1,
6888 Z_DEFLATED, 15,
6889 9, Z_DEFAULT_STRATEGY);
6890 if (ret != Z_OK)
6891 return -1;
6892 s->zstream.avail_out = IOBUF_SIZE;
6893 s->zstream.next_out = s->buf;
6894 return 0;
6895 }
6896
6897 static void ram_put_cblock(RamCompressState *s, const uint8_t *buf, int len)
6898 {
6899 qemu_put_be16(s->f, RAM_CBLOCK_MAGIC);
6900 qemu_put_be16(s->f, len);
6901 qemu_put_buffer(s->f, buf, len);
6902 }
6903
6904 static int ram_compress_buf(RamCompressState *s, const uint8_t *buf, int len)
6905 {
6906 int ret;
6907
6908 s->zstream.avail_in = len;
6909 s->zstream.next_in = (uint8_t *)buf;
6910 while (s->zstream.avail_in > 0) {
6911 ret = deflate(&s->zstream, Z_NO_FLUSH);
6912 if (ret != Z_OK)
6913 return -1;
6914 if (s->zstream.avail_out == 0) {
6915 ram_put_cblock(s, s->buf, IOBUF_SIZE);
6916 s->zstream.avail_out = IOBUF_SIZE;
6917 s->zstream.next_out = s->buf;
6918 }
6919 }
6920 return 0;
6921 }
6922
6923 static void ram_compress_close(RamCompressState *s)
6924 {
6925 int len, ret;
6926
6927 /* compress last bytes */
6928 for(;;) {
6929 ret = deflate(&s->zstream, Z_FINISH);
6930 if (ret == Z_OK || ret == Z_STREAM_END) {
6931 len = IOBUF_SIZE - s->zstream.avail_out;
6932 if (len > 0) {
6933 ram_put_cblock(s, s->buf, len);
6934 }
6935 s->zstream.avail_out = IOBUF_SIZE;
6936 s->zstream.next_out = s->buf;
6937 if (ret == Z_STREAM_END)
6938 break;
6939 } else {
6940 goto fail;
6941 }
6942 }
6943 fail:
6944 deflateEnd(&s->zstream);
6945 }
6946
6947 typedef struct RamDecompressState {
6948 z_stream zstream;
6949 QEMUFile *f;
6950 uint8_t buf[IOBUF_SIZE];
6951 } RamDecompressState;
6952
6953 static int ram_decompress_open(RamDecompressState *s, QEMUFile *f)
6954 {
6955 int ret;
6956 memset(s, 0, sizeof(*s));
6957 s->f = f;
6958 ret = inflateInit(&s->zstream);
6959 if (ret != Z_OK)
6960 return -1;
6961 return 0;
6962 }
6963
6964 static int ram_decompress_buf(RamDecompressState *s, uint8_t *buf, int len)
6965 {
6966 int ret, clen;
6967
6968 s->zstream.avail_out = len;
6969 s->zstream.next_out = buf;
6970 while (s->zstream.avail_out > 0) {
6971 if (s->zstream.avail_in == 0) {
6972 if (qemu_get_be16(s->f) != RAM_CBLOCK_MAGIC)
6973 return -1;
6974 clen = qemu_get_be16(s->f);
6975 if (clen > IOBUF_SIZE)
6976 return -1;
6977 qemu_get_buffer(s->f, s->buf, clen);
6978 s->zstream.avail_in = clen;
6979 s->zstream.next_in = s->buf;
6980 }
6981 ret = inflate(&s->zstream, Z_PARTIAL_FLUSH);
6982 if (ret != Z_OK && ret != Z_STREAM_END) {
6983 return -1;
6984 }
6985 }
6986 return 0;
6987 }
6988
6989 static void ram_decompress_close(RamDecompressState *s)
6990 {
6991 inflateEnd(&s->zstream);
6992 }
6993
6994 static void ram_save(QEMUFile *f, void *opaque)
6995 {
6996 ram_addr_t i;
6997 RamCompressState s1, *s = &s1;
6998 uint8_t buf[10];
6999
7000 qemu_put_be32(f, phys_ram_size);
7001 if (ram_compress_open(s, f) < 0)
7002 return;
7003 for(i = 0; i < phys_ram_size; i+= BDRV_HASH_BLOCK_SIZE) {
7004 #if 0
7005 if (tight_savevm_enabled) {
7006 int64_t sector_num;
7007 int j;
7008
7009 /* find if the memory block is available on a virtual
7010 block device */
7011 sector_num = -1;
7012 for(j = 0; j < nb_drives; j++) {
7013 sector_num = bdrv_hash_find(drives_table[j].bdrv,
7014 phys_ram_base + i,
7015 BDRV_HASH_BLOCK_SIZE);
7016 if (sector_num >= 0)
7017 break;
7018 }
7019 if (j == nb_drives)
7020 goto normal_compress;
7021 buf[0] = 1;
7022 buf[1] = j;
7023 cpu_to_be64wu((uint64_t *)(buf + 2), sector_num);
7024 ram_compress_buf(s, buf, 10);
7025 } else
7026 #endif
7027 {
7028 // normal_compress:
7029 buf[0] = 0;
7030 ram_compress_buf(s, buf, 1);
7031 ram_compress_buf(s, phys_ram_base + i, BDRV_HASH_BLOCK_SIZE);
7032 }
7033 }
7034 ram_compress_close(s);
7035 }
7036
7037 static int ram_load(QEMUFile *f, void *opaque, int version_id)
7038 {
7039 RamDecompressState s1, *s = &s1;
7040 uint8_t buf[10];
7041 ram_addr_t i;
7042
7043 if (version_id == 1)
7044 return ram_load_v1(f, opaque);
7045 if (version_id != 2)
7046 return -EINVAL;
7047 if (qemu_get_be32(f) != phys_ram_size)
7048 return -EINVAL;
7049 if (ram_decompress_open(s, f) < 0)
7050 return -EINVAL;
7051 for(i = 0; i < phys_ram_size; i+= BDRV_HASH_BLOCK_SIZE) {
7052 if (ram_decompress_buf(s, buf, 1) < 0) {
7053 fprintf(stderr, "Error while reading ram block header\n");
7054 goto error;
7055 }
7056 if (buf[0] == 0) {
7057 if (ram_decompress_buf(s, phys_ram_base + i, BDRV_HASH_BLOCK_SIZE) < 0) {
7058 fprintf(stderr, "Error while reading ram block address=0x%08" PRIx64, (uint64_t)i);
7059 goto error;
7060 }
7061 } else
7062 #if 0
7063 if (buf[0] == 1) {
7064 int bs_index;
7065 int64_t sector_num;
7066
7067 ram_decompress_buf(s, buf + 1, 9);
7068 bs_index = buf[1];
7069 sector_num = be64_to_cpupu((const uint64_t *)(buf + 2));
7070 if (bs_index >= nb_drives) {
7071 fprintf(stderr, "Invalid block device index %d\n", bs_index);
7072 goto error;
7073 }
7074 if (bdrv_read(drives_table[bs_index].bdrv, sector_num,
7075 phys_ram_base + i,
7076 BDRV_HASH_BLOCK_SIZE / 512) < 0) {
7077 fprintf(stderr, "Error while reading sector %d:%" PRId64 "\n",
7078 bs_index, sector_num);
7079 goto error;
7080 }
7081 } else
7082 #endif
7083 {
7084 error:
7085 printf("Error block header\n");
7086 return -EINVAL;
7087 }
7088 }
7089 ram_decompress_close(s);
7090 return 0;
7091 }
7092
7093 /***********************************************************/
7094 /* bottom halves (can be seen as timers which expire ASAP) */
7095
7096 struct QEMUBH {
7097 QEMUBHFunc *cb;
7098 void *opaque;
7099 int scheduled;
7100 QEMUBH *next;
7101 };
7102
7103 static QEMUBH *first_bh = NULL;
7104
7105 QEMUBH *qemu_bh_new(QEMUBHFunc *cb, void *opaque)
7106 {
7107 QEMUBH *bh;
7108 bh = qemu_mallocz(sizeof(QEMUBH));
7109 if (!bh)
7110 return NULL;
7111 bh->cb = cb;
7112 bh->opaque = opaque;
7113 return bh;
7114 }
7115
7116 int qemu_bh_poll(void)
7117 {
7118 QEMUBH *bh, **pbh;
7119 int ret;
7120
7121 ret = 0;
7122 for(;;) {
7123 pbh = &first_bh;
7124 bh = *pbh;
7125 if (!bh)
7126 break;
7127 ret = 1;
7128 *pbh = bh->next;
7129 bh->scheduled = 0;
7130 bh->cb(bh->opaque);
7131 }
7132 return ret;
7133 }
7134
7135 void qemu_bh_schedule(QEMUBH *bh)
7136 {
7137 CPUState *env = cpu_single_env;
7138 if (bh->scheduled)
7139 return;
7140 bh->scheduled = 1;
7141 bh->next = first_bh;
7142 first_bh = bh;
7143
7144 /* stop the currently executing CPU to execute the BH ASAP */
7145 if (env) {
7146 cpu_interrupt(env, CPU_INTERRUPT_EXIT);
7147 }
7148 }
7149
7150 void qemu_bh_cancel(QEMUBH *bh)
7151 {
7152 QEMUBH **pbh;
7153 if (bh->scheduled) {
7154 pbh = &first_bh;
7155 while (*pbh != bh)
7156 pbh = &(*pbh)->next;
7157 *pbh = bh->next;
7158 bh->scheduled = 0;
7159 }
7160 }
7161
7162 void qemu_bh_delete(QEMUBH *bh)
7163 {
7164 qemu_bh_cancel(bh);
7165 qemu_free(bh);
7166 }
7167
7168 /***********************************************************/
7169 /* machine registration */
7170
7171 QEMUMachine *first_machine = NULL;
7172
7173 int qemu_register_machine(QEMUMachine *m)
7174 {
7175 QEMUMachine **pm;
7176 pm = &first_machine;
7177 while (*pm != NULL)
7178 pm = &(*pm)->next;
7179 m->next = NULL;
7180 *pm = m;
7181 return 0;
7182 }
7183
7184 static QEMUMachine *find_machine(const char *name)
7185 {
7186 QEMUMachine *m;
7187
7188 for(m = first_machine; m != NULL; m = m->next) {
7189 if (!strcmp(m->name, name))
7190 return m;
7191 }
7192 return NULL;
7193 }
7194
7195 /***********************************************************/
7196 /* main execution loop */
7197
7198 static void gui_update(void *opaque)
7199 {
7200 DisplayState *ds = opaque;
7201 ds->dpy_refresh(ds);
7202 qemu_mod_timer(ds->gui_timer,
7203 (ds->gui_timer_interval ?
7204 ds->gui_timer_interval :
7205 GUI_REFRESH_INTERVAL)
7206 + qemu_get_clock(rt_clock));
7207 }
7208
7209 struct vm_change_state_entry {
7210 VMChangeStateHandler *cb;
7211 void *opaque;
7212 LIST_ENTRY (vm_change_state_entry) entries;
7213 };
7214
7215 static LIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
7216
7217 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
7218 void *opaque)
7219 {
7220 VMChangeStateEntry *e;
7221
7222 e = qemu_mallocz(sizeof (*e));
7223 if (!e)
7224 return NULL;
7225
7226 e->cb = cb;
7227 e->opaque = opaque;
7228 LIST_INSERT_HEAD(&vm_change_state_head, e, entries);
7229 return e;
7230 }
7231
7232 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
7233 {
7234 LIST_REMOVE (e, entries);
7235 qemu_free (e);
7236 }
7237
7238 static void vm_state_notify(int running)
7239 {
7240 VMChangeStateEntry *e;
7241
7242 for (e = vm_change_state_head.lh_first; e; e = e->entries.le_next) {
7243 e->cb(e->opaque, running);
7244 }
7245 }
7246
7247 /* XXX: support several handlers */
7248 static VMStopHandler *vm_stop_cb;
7249 static void *vm_stop_opaque;
7250
7251 int qemu_add_vm_stop_handler(VMStopHandler *cb, void *opaque)
7252 {
7253 vm_stop_cb = cb;
7254 vm_stop_opaque = opaque;
7255 return 0;
7256 }
7257
7258 void qemu_del_vm_stop_handler(VMStopHandler *cb, void *opaque)
7259 {
7260 vm_stop_cb = NULL;
7261 }
7262
7263 void vm_start(void)
7264 {
7265 if (!vm_running) {
7266 cpu_enable_ticks();
7267 vm_running = 1;
7268 vm_state_notify(1);
7269 qemu_rearm_alarm_timer(alarm_timer);
7270 }
7271 }
7272
7273 void vm_stop(int reason)
7274 {
7275 if (vm_running) {
7276 cpu_disable_ticks();
7277 vm_running = 0;
7278 if (reason != 0) {
7279 if (vm_stop_cb) {
7280 vm_stop_cb(vm_stop_opaque, reason);
7281 }
7282 }
7283 vm_state_notify(0);
7284 }
7285 }
7286
7287 /* reset/shutdown handler */
7288
7289 typedef struct QEMUResetEntry {
7290 QEMUResetHandler *func;
7291 void *opaque;
7292 struct QEMUResetEntry *next;
7293 } QEMUResetEntry;
7294
7295 static QEMUResetEntry *first_reset_entry;
7296 static int reset_requested;
7297 static int shutdown_requested;
7298 static int powerdown_requested;
7299
7300 int qemu_shutdown_requested(void)
7301 {
7302 int r = shutdown_requested;
7303 shutdown_requested = 0;
7304 return r;
7305 }
7306
7307 int qemu_reset_requested(void)
7308 {
7309 int r = reset_requested;
7310 reset_requested = 0;
7311 return r;
7312 }
7313
7314 int qemu_powerdown_requested(void)
7315 {
7316 int r = powerdown_requested;
7317 powerdown_requested = 0;
7318 return r;
7319 }
7320
7321 void qemu_register_reset(QEMUResetHandler *func, void *opaque)
7322 {
7323 QEMUResetEntry **pre, *re;
7324
7325 pre = &first_reset_entry;
7326 while (*pre != NULL)
7327 pre = &(*pre)->next;
7328 re = qemu_mallocz(sizeof(QEMUResetEntry));
7329 re->func = func;
7330 re->opaque = opaque;
7331 re->next = NULL;
7332 *pre = re;
7333 }
7334
7335 void qemu_system_reset(void)
7336 {
7337 QEMUResetEntry *re;
7338
7339 /* reset all devices */
7340 for(re = first_reset_entry; re != NULL; re = re->next) {
7341 re->func(re->opaque);
7342 }
7343 }
7344
7345 void qemu_system_reset_request(void)
7346 {
7347 if (no_reboot) {
7348 shutdown_requested = 1;
7349 } else {
7350 reset_requested = 1;
7351 }
7352 if (cpu_single_env)
7353 cpu_interrupt(cpu_single_env, CPU_INTERRUPT_EXIT);
7354 }
7355
7356 void qemu_system_shutdown_request(void)
7357 {
7358 shutdown_requested = 1;
7359 if (cpu_single_env)
7360 cpu_interrupt(cpu_single_env, CPU_INTERRUPT_EXIT);
7361 }
7362
7363 void qemu_system_powerdown_request(void)
7364 {
7365 powerdown_requested = 1;
7366 if (cpu_single_env)
7367 cpu_interrupt(cpu_single_env, CPU_INTERRUPT_EXIT);
7368 }
7369
7370 void main_loop_wait(int timeout)
7371 {
7372 IOHandlerRecord *ioh;
7373 fd_set rfds, wfds, xfds;
7374 int ret, nfds;
7375 #ifdef _WIN32
7376 int ret2, i;
7377 #endif
7378 struct timeval tv;
7379 PollingEntry *pe;
7380
7381
7382 /* XXX: need to suppress polling by better using win32 events */
7383 ret = 0;
7384 for(pe = first_polling_entry; pe != NULL; pe = pe->next) {
7385 ret |= pe->func(pe->opaque);
7386 }
7387 #ifdef _WIN32
7388 if (ret == 0) {
7389 int err;
7390 WaitObjects *w = &wait_objects;
7391
7392 ret = WaitForMultipleObjects(w->num, w->events, FALSE, timeout);
7393 if (WAIT_OBJECT_0 + 0 <= ret && ret <= WAIT_OBJECT_0 + w->num - 1) {
7394 if (w->func[ret - WAIT_OBJECT_0])
7395 w->func[ret - WAIT_OBJECT_0](w->opaque[ret - WAIT_OBJECT_0]);
7396
7397 /* Check for additional signaled events */
7398 for(i = (ret - WAIT_OBJECT_0 + 1); i < w->num; i++) {
7399
7400 /* Check if event is signaled */
7401 ret2 = WaitForSingleObject(w->events[i], 0);
7402 if(ret2 == WAIT_OBJECT_0) {
7403 if (w->func[i])
7404 w->func[i](w->opaque[i]);
7405 } else if (ret2 == WAIT_TIMEOUT) {
7406 } else {
7407 err = GetLastError();
7408 fprintf(stderr, "WaitForSingleObject error %d %d\n", i, err);
7409 }
7410 }
7411 } else if (ret == WAIT_TIMEOUT) {
7412 } else {
7413 err = GetLastError();
7414 fprintf(stderr, "WaitForMultipleObjects error %d %d\n", ret, err);
7415 }
7416 }
7417 #endif
7418 /* poll any events */
7419 /* XXX: separate device handlers from system ones */
7420 nfds = -1;
7421 FD_ZERO(&rfds);
7422 FD_ZERO(&wfds);
7423 FD_ZERO(&xfds);
7424 for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) {
7425 if (ioh->deleted)
7426 continue;
7427 if (ioh->fd_read &&
7428 (!ioh->fd_read_poll ||
7429 ioh->fd_read_poll(ioh->opaque) != 0)) {
7430 FD_SET(ioh->fd, &rfds);
7431 if (ioh->fd > nfds)
7432 nfds = ioh->fd;
7433 }
7434 if (ioh->fd_write) {
7435 FD_SET(ioh->fd, &wfds);
7436 if (ioh->fd > nfds)
7437 nfds = ioh->fd;
7438 }
7439 }
7440
7441 tv.tv_sec = 0;
7442 #ifdef _WIN32
7443 tv.tv_usec = 0;
7444 #else
7445 tv.tv_usec = timeout * 1000;
7446 #endif
7447 #if defined(CONFIG_SLIRP)
7448 if (slirp_inited) {
7449 slirp_select_fill(&nfds, &rfds, &wfds, &xfds);
7450 }
7451 #endif
7452 ret = select(nfds + 1, &rfds, &wfds, &xfds, &tv);
7453 if (ret > 0) {
7454 IOHandlerRecord **pioh;
7455
7456 for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) {
7457 if (!ioh->deleted && ioh->fd_read && FD_ISSET(ioh->fd, &rfds)) {
7458 ioh->fd_read(ioh->opaque);
7459 }
7460 if (!ioh->deleted && ioh->fd_write && FD_ISSET(ioh->fd, &wfds)) {
7461 ioh->fd_write(ioh->opaque);
7462 }
7463 }
7464
7465 /* remove deleted IO handlers */
7466 pioh = &first_io_handler;
7467 while (*pioh) {
7468 ioh = *pioh;
7469 if (ioh->deleted) {
7470 *pioh = ioh->next;
7471 qemu_free(ioh);
7472 } else
7473 pioh = &ioh->next;
7474 }
7475 }
7476 #if defined(CONFIG_SLIRP)
7477 if (slirp_inited) {
7478 if (ret < 0) {
7479 FD_ZERO(&rfds);
7480 FD_ZERO(&wfds);
7481 FD_ZERO(&xfds);
7482 }
7483 slirp_select_poll(&rfds, &wfds, &xfds);
7484 }
7485 #endif
7486 qemu_aio_poll();
7487
7488 if (vm_running) {
7489 if (likely(!(cur_cpu->singlestep_enabled & SSTEP_NOTIMER)))
7490 qemu_run_timers(&active_timers[QEMU_TIMER_VIRTUAL],
7491 qemu_get_clock(vm_clock));
7492 /* run dma transfers, if any */
7493 DMA_run();
7494 }
7495
7496 /* real time timers */
7497 qemu_run_timers(&active_timers[QEMU_TIMER_REALTIME],
7498 qemu_get_clock(rt_clock));
7499
7500 if (alarm_timer->flags & ALARM_FLAG_EXPIRED) {
7501 alarm_timer->flags &= ~(ALARM_FLAG_EXPIRED);
7502 qemu_rearm_alarm_timer(alarm_timer);
7503 }
7504
7505 /* Check bottom-halves last in case any of the earlier events triggered
7506 them. */
7507 qemu_bh_poll();
7508
7509 }
7510
7511 static int main_loop(void)
7512 {
7513 int ret, timeout;
7514 #ifdef CONFIG_PROFILER
7515 int64_t ti;
7516 #endif
7517 CPUState *env;
7518
7519 cur_cpu = first_cpu;
7520 next_cpu = cur_cpu->next_cpu ?: first_cpu;
7521 for(;;) {
7522 if (vm_running) {
7523
7524 for(;;) {
7525 /* get next cpu */
7526 env = next_cpu;
7527 #ifdef CONFIG_PROFILER
7528 ti = profile_getclock();
7529 #endif
7530 if (use_icount) {
7531 int64_t count;
7532 int decr;
7533 qemu_icount -= (env->icount_decr.u16.low + env->icount_extra);
7534 env->icount_decr.u16.low = 0;
7535 env->icount_extra = 0;
7536 count = qemu_next_deadline();
7537 count = (count + (1 << icount_time_shift) - 1)
7538 >> icount_time_shift;
7539 qemu_icount += count;
7540 decr = (count > 0xffff) ? 0xffff : count;
7541 count -= decr;
7542 env->icount_decr.u16.low = decr;
7543 env->icount_extra = count;
7544 }
7545 ret = cpu_exec(env);
7546 #ifdef CONFIG_PROFILER
7547 qemu_time += profile_getclock() - ti;
7548 #endif
7549 if (use_icount) {
7550 /* Fold pending instructions back into the
7551 instruction counter, and clear the interrupt flag. */
7552 qemu_icount -= (env->icount_decr.u16.low
7553 + env->icount_extra);
7554 env->icount_decr.u32 = 0;
7555 env->icount_extra = 0;
7556 }
7557 next_cpu = env->next_cpu ?: first_cpu;
7558 if (event_pending && likely(ret != EXCP_DEBUG)) {
7559 ret = EXCP_INTERRUPT;
7560 event_pending = 0;
7561 break;
7562 }
7563 if (ret == EXCP_HLT) {
7564 /* Give the next CPU a chance to run. */
7565 cur_cpu = env;
7566 continue;
7567 }
7568 if (ret != EXCP_HALTED)
7569 break;
7570 /* all CPUs are halted ? */
7571 if (env == cur_cpu)
7572 break;
7573 }
7574 cur_cpu = env;
7575
7576 if (shutdown_requested) {
7577 ret = EXCP_INTERRUPT;
7578 if (no_shutdown) {
7579 vm_stop(0);
7580 no_shutdown = 0;
7581 }
7582 else
7583 break;
7584 }
7585 if (reset_requested) {
7586 reset_requested = 0;
7587 qemu_system_reset();
7588 ret = EXCP_INTERRUPT;
7589 }
7590 if (powerdown_requested) {
7591 powerdown_requested = 0;
7592 qemu_system_powerdown();
7593 ret = EXCP_INTERRUPT;
7594 }
7595 if (unlikely(ret == EXCP_DEBUG)) {
7596 vm_stop(EXCP_DEBUG);
7597 }
7598 /* If all cpus are halted then wait until the next IRQ */
7599 /* XXX: use timeout computed from timers */
7600 if (ret == EXCP_HALTED) {
7601 if (use_icount) {
7602 int64_t add;
7603 int64_t delta;
7604 /* Advance virtual time to the next event. */
7605 if (use_icount == 1) {
7606 /* When not using an adaptive execution frequency
7607 we tend to get badly out of sync with real time,
7608 so just delay for a reasonable amount of time. */
7609 delta = 0;
7610 } else {
7611 delta = cpu_get_icount() - cpu_get_clock();
7612 }
7613 if (delta > 0) {
7614 /* If virtual time is ahead of real time then just
7615 wait for IO. */
7616 timeout = (delta / 1000000) + 1;
7617 } else {
7618 /* Wait for either IO to occur or the next
7619 timer event. */
7620 add = qemu_next_deadline();
7621 /* We advance the timer before checking for IO.
7622 Limit the amount we advance so that early IO
7623 activity won't get the guest too far ahead. */
7624 if (add > 10000000)
7625 add = 10000000;
7626 delta += add;
7627 add = (add + (1 << icount_time_shift) - 1)
7628 >> icount_time_shift;
7629 qemu_icount += add;
7630 timeout = delta / 1000000;
7631 if (timeout < 0)
7632 timeout = 0;
7633 }
7634 } else {
7635 timeout = 10;
7636 }
7637 } else {
7638 timeout = 0;
7639 }
7640 } else {
7641 if (shutdown_requested)
7642 break;
7643 timeout = 10;
7644 }
7645 #ifdef CONFIG_PROFILER
7646 ti = profile_getclock();
7647 #endif
7648 main_loop_wait(timeout);
7649 #ifdef CONFIG_PROFILER
7650 dev_time += profile_getclock() - ti;
7651 #endif
7652 }
7653 cpu_disable_ticks();
7654 return ret;
7655 }
7656
7657 static void help(int exitcode)
7658 {
7659 printf("QEMU PC emulator version " QEMU_VERSION ", Copyright (c) 2003-2008 Fabrice Bellard\n"
7660 "usage: %s [options] [disk_image]\n"
7661 "\n"
7662 "'disk_image' is a raw hard image image for IDE hard disk 0\n"
7663 "\n"
7664 "Standard options:\n"
7665 "-M machine select emulated machine (-M ? for list)\n"
7666 "-cpu cpu select CPU (-cpu ? for list)\n"
7667 "-fda/-fdb file use 'file' as floppy disk 0/1 image\n"
7668 "-hda/-hdb file use 'file' as IDE hard disk 0/1 image\n"
7669 "-hdc/-hdd file use 'file' as IDE hard disk 2/3 image\n"
7670 "-cdrom file use 'file' as IDE cdrom image (cdrom is ide1 master)\n"
7671 "-drive [file=file][,if=type][,bus=n][,unit=m][,media=d][,index=i]\n"
7672 " [,cyls=c,heads=h,secs=s[,trans=t]][,snapshot=on|off]\n"
7673 " [,cache=on|off][,format=f]\n"
7674 " use 'file' as a drive image\n"
7675 "-mtdblock file use 'file' as on-board Flash memory image\n"
7676 "-sd file use 'file' as SecureDigital card image\n"
7677 "-pflash file use 'file' as a parallel flash image\n"
7678 "-boot [a|c|d|n] boot on floppy (a), hard disk (c), CD-ROM (d), or network (n)\n"
7679 "-snapshot write to temporary files instead of disk image files\n"
7680 #ifdef CONFIG_SDL
7681 "-no-frame open SDL window without a frame and window decorations\n"
7682 "-alt-grab use Ctrl-Alt-Shift to grab mouse (instead of Ctrl-Alt)\n"
7683 "-no-quit disable SDL window close capability\n"
7684 #endif
7685 #ifdef TARGET_I386
7686 "-no-fd-bootchk disable boot signature checking for floppy disks\n"
7687 #endif
7688 "-m megs set virtual RAM size to megs MB [default=%d]\n"
7689 "-smp n set the number of CPUs to 'n' [default=1]\n"
7690 "-nographic disable graphical output and redirect serial I/Os to console\n"
7691 "-portrait rotate graphical output 90 deg left (only PXA LCD)\n"
7692 #ifndef _WIN32
7693 "-k language use keyboard layout (for example \"fr\" for French)\n"
7694 #endif
7695 #ifdef HAS_AUDIO
7696 "-audio-help print list of audio drivers and their options\n"
7697 "-soundhw c1,... enable audio support\n"
7698 " and only specified sound cards (comma separated list)\n"
7699 " use -soundhw ? to get the list of supported cards\n"
7700 " use -soundhw all to enable all of them\n"
7701 #endif
7702 "-localtime set the real time clock to local time [default=utc]\n"
7703 "-full-screen start in full screen\n"
7704 #ifdef TARGET_I386
7705 "-win2k-hack use it when installing Windows 2000 to avoid a disk full bug\n"
7706 #endif
7707 "-usb enable the USB driver (will be the default soon)\n"
7708 "-usbdevice name add the host or guest USB device 'name'\n"
7709 #if defined(TARGET_PPC) || defined(TARGET_SPARC)
7710 "-g WxH[xDEPTH] Set the initial graphical resolution and depth\n"
7711 #endif
7712 "-name string set the name of the guest\n"
7713 "\n"
7714 "Network options:\n"
7715 "-net nic[,vlan=n][,macaddr=addr][,model=type]\n"
7716 " create a new Network Interface Card and connect it to VLAN 'n'\n"
7717 #ifdef CONFIG_SLIRP
7718 "-net user[,vlan=n][,hostname=host]\n"
7719 " connect the user mode network stack to VLAN 'n' and send\n"
7720 " hostname 'host' to DHCP clients\n"
7721 #endif
7722 #ifdef _WIN32
7723 "-net tap[,vlan=n],ifname=name\n"
7724 " connect the host TAP network interface to VLAN 'n'\n"
7725 #else
7726 "-net tap[,vlan=n][,fd=h][,ifname=name][,script=file][,downscript=dfile]\n"
7727 " connect the host TAP network interface to VLAN 'n' and use the\n"
7728 " network scripts 'file' (default=%s)\n"
7729 " and 'dfile' (default=%s);\n"
7730 " use '[down]script=no' to disable script execution;\n"
7731 " use 'fd=h' to connect to an already opened TAP interface\n"
7732 #endif
7733 "-net socket[,vlan=n][,fd=h][,listen=[host]:port][,connect=host:port]\n"
7734 " connect the vlan 'n' to another VLAN using a socket connection\n"
7735 "-net socket[,vlan=n][,fd=h][,mcast=maddr:port]\n"
7736 " connect the vlan 'n' to multicast maddr and port\n"
7737 #ifdef CONFIG_VDE
7738 "-net vde[,vlan=n][,sock=socketpath][,port=n][,group=groupname][,mode=octalmode]\n"
7739 " connect the vlan 'n' to port 'n' of a vde switch running\n"
7740 " on host and listening for incoming connections on 'socketpath'.\n"
7741 " Use group 'groupname' and mode 'octalmode' to change default\n"
7742 " ownership and permissions for communication port.\n"
7743 #endif
7744 "-net none use it alone to have zero network devices; if no -net option\n"
7745 " is provided, the default is '-net nic -net user'\n"
7746 "\n"
7747 #ifdef CONFIG_SLIRP
7748 "-tftp dir allow tftp access to files in dir [-net user]\n"
7749 "-bootp file advertise file in BOOTP replies\n"
7750 #ifndef _WIN32
7751 "-smb dir allow SMB access to files in 'dir' [-net user]\n"
7752 #endif
7753 "-redir [tcp|udp]:host-port:[guest-host]:guest-port\n"
7754 " redirect TCP or UDP connections from host to guest [-net user]\n"
7755 #endif
7756 "\n"
7757 "Linux boot specific:\n"
7758 "-kernel bzImage use 'bzImage' as kernel image\n"
7759 "-append cmdline use 'cmdline' as kernel command line\n"
7760 "-initrd file use 'file' as initial ram disk\n"
7761 "\n"
7762 "Debug/Expert options:\n"
7763 "-monitor dev redirect the monitor to char device 'dev'\n"
7764 "-serial dev redirect the serial port to char device 'dev'\n"
7765 "-parallel dev redirect the parallel port to char device 'dev'\n"
7766 "-pidfile file Write PID to 'file'\n"
7767 "-S freeze CPU at startup (use 'c' to start execution)\n"
7768 "-s wait gdb connection to port\n"
7769 "-p port set gdb connection port [default=%s]\n"
7770 "-d item1,... output log to %s (use -d ? for a list of log items)\n"
7771 "-hdachs c,h,s[,t] force hard disk 0 physical geometry and the optional BIOS\n"
7772 " translation (t=none or lba) (usually qemu can guess them)\n"
7773 "-L path set the directory for the BIOS, VGA BIOS and keymaps\n"
7774 #ifdef USE_KQEMU
7775 "-kernel-kqemu enable KQEMU full virtualization (default is user mode only)\n"
7776 "-no-kqemu disable KQEMU kernel module usage\n"
7777 #endif
7778 #ifdef TARGET_I386
7779 "-std-vga simulate a standard VGA card with VESA Bochs Extensions\n"
7780 " (default is CL-GD5446 PCI VGA)\n"
7781 "-no-acpi disable ACPI\n"
7782 #endif
7783 #ifdef CONFIG_CURSES
7784 "-curses use a curses/ncurses interface instead of SDL\n"
7785 #endif
7786 "-no-reboot exit instead of rebooting\n"
7787 "-no-shutdown stop before shutdown\n"
7788 "-loadvm [tag|id] start right away with a saved state (loadvm in monitor)\n"
7789 "-vnc display start a VNC server on display\n"
7790 #ifndef _WIN32
7791 "-daemonize daemonize QEMU after initializing\n"
7792 #endif
7793 "-option-rom rom load a file, rom, into the option ROM space\n"
7794 #ifdef TARGET_SPARC
7795 "-prom-env variable=value set OpenBIOS nvram variables\n"
7796 #endif
7797 "-clock force the use of the given methods for timer alarm.\n"
7798 " To see what timers are available use -clock ?\n"
7799 "-startdate select initial date of the clock\n"
7800 "-icount [N|auto]\n"
7801 " Enable virtual instruction counter with 2^N clock ticks per instruction\n"
7802 "\n"
7803 "During emulation, the following keys are useful:\n"
7804 "ctrl-alt-f toggle full screen\n"
7805 "ctrl-alt-n switch to virtual console 'n'\n"
7806 "ctrl-alt toggle mouse and keyboard grab\n"
7807 "\n"
7808 "When using -nographic, press 'ctrl-a h' to get some help.\n"
7809 ,
7810 "qemu",
7811 DEFAULT_RAM_SIZE,
7812 #ifndef _WIN32
7813 DEFAULT_NETWORK_SCRIPT,
7814 DEFAULT_NETWORK_DOWN_SCRIPT,
7815 #endif
7816 DEFAULT_GDBSTUB_PORT,
7817 "/tmp/qemu.log");
7818 exit(exitcode);
7819 }
7820
7821 #define HAS_ARG 0x0001
7822
7823 enum {
7824 QEMU_OPTION_h,
7825
7826 QEMU_OPTION_M,
7827 QEMU_OPTION_cpu,
7828 QEMU_OPTION_fda,
7829 QEMU_OPTION_fdb,
7830 QEMU_OPTION_hda,
7831 QEMU_OPTION_hdb,
7832 QEMU_OPTION_hdc,
7833 QEMU_OPTION_hdd,
7834 QEMU_OPTION_drive,
7835 QEMU_OPTION_cdrom,
7836 QEMU_OPTION_mtdblock,
7837 QEMU_OPTION_sd,
7838 QEMU_OPTION_pflash,
7839 QEMU_OPTION_boot,
7840 QEMU_OPTION_snapshot,
7841 #ifdef TARGET_I386
7842 QEMU_OPTION_no_fd_bootchk,
7843 #endif
7844 QEMU_OPTION_m,
7845 QEMU_OPTION_nographic,
7846 QEMU_OPTION_portrait,
7847 #ifdef HAS_AUDIO
7848 QEMU_OPTION_audio_help,
7849 QEMU_OPTION_soundhw,
7850 #endif
7851
7852 QEMU_OPTION_net,
7853 QEMU_OPTION_tftp,
7854 QEMU_OPTION_bootp,
7855 QEMU_OPTION_smb,
7856 QEMU_OPTION_redir,
7857
7858 QEMU_OPTION_kernel,
7859 QEMU_OPTION_append,
7860 QEMU_OPTION_initrd,
7861
7862 QEMU_OPTION_S,
7863 QEMU_OPTION_s,
7864 QEMU_OPTION_p,
7865 QEMU_OPTION_d,
7866 QEMU_OPTION_hdachs,
7867 QEMU_OPTION_L,
7868 QEMU_OPTION_bios,
7869 QEMU_OPTION_k,
7870 QEMU_OPTION_localtime,
7871 QEMU_OPTION_cirrusvga,
7872 QEMU_OPTION_vmsvga,
7873 QEMU_OPTION_g,
7874 QEMU_OPTION_std_vga,
7875 QEMU_OPTION_echr,
7876 QEMU_OPTION_monitor,
7877 QEMU_OPTION_serial,
7878 QEMU_OPTION_parallel,
7879 QEMU_OPTION_loadvm,
7880 QEMU_OPTION_full_screen,
7881 QEMU_OPTION_no_frame,
7882 QEMU_OPTION_alt_grab,
7883 QEMU_OPTION_no_quit,
7884 QEMU_OPTION_pidfile,
7885 QEMU_OPTION_no_kqemu,
7886 QEMU_OPTION_kernel_kqemu,
7887 QEMU_OPTION_win2k_hack,
7888 QEMU_OPTION_usb,
7889 QEMU_OPTION_usbdevice,
7890 QEMU_OPTION_smp,
7891 QEMU_OPTION_vnc,
7892 QEMU_OPTION_no_acpi,
7893 QEMU_OPTION_curses,
7894 QEMU_OPTION_no_reboot,
7895 QEMU_OPTION_no_shutdown,
7896 QEMU_OPTION_show_cursor,
7897 QEMU_OPTION_daemonize,
7898 QEMU_OPTION_option_rom,
7899 QEMU_OPTION_semihosting,
7900 QEMU_OPTION_name,
7901 QEMU_OPTION_prom_env,
7902 QEMU_OPTION_old_param,
7903 QEMU_OPTION_clock,
7904 QEMU_OPTION_startdate,
7905 QEMU_OPTION_tb_size,
7906 QEMU_OPTION_icount,
7907 };
7908
7909 typedef struct QEMUOption {
7910 const char *name;
7911 int flags;
7912 int index;
7913 } QEMUOption;
7914
7915 const QEMUOption qemu_options[] = {
7916 { "h", 0, QEMU_OPTION_h },
7917 { "help", 0, QEMU_OPTION_h },
7918
7919 { "M", HAS_ARG, QEMU_OPTION_M },
7920 { "cpu", HAS_ARG, QEMU_OPTION_cpu },
7921 { "fda", HAS_ARG, QEMU_OPTION_fda },
7922 { "fdb", HAS_ARG, QEMU_OPTION_fdb },
7923 { "hda", HAS_ARG, QEMU_OPTION_hda },
7924 { "hdb", HAS_ARG, QEMU_OPTION_hdb },
7925 { "hdc", HAS_ARG, QEMU_OPTION_hdc },
7926 { "hdd", HAS_ARG, QEMU_OPTION_hdd },
7927 { "drive", HAS_ARG, QEMU_OPTION_drive },
7928 { "cdrom", HAS_ARG, QEMU_OPTION_cdrom },
7929 { "mtdblock", HAS_ARG, QEMU_OPTION_mtdblock },
7930 { "sd", HAS_ARG, QEMU_OPTION_sd },
7931 { "pflash", HAS_ARG, QEMU_OPTION_pflash },
7932 { "boot", HAS_ARG, QEMU_OPTION_boot },
7933 { "snapshot", 0, QEMU_OPTION_snapshot },
7934 #ifdef TARGET_I386
7935 { "no-fd-bootchk", 0, QEMU_OPTION_no_fd_bootchk },
7936 #endif
7937 { "m", HAS_ARG, QEMU_OPTION_m },
7938 { "nographic", 0, QEMU_OPTION_nographic },
7939 { "portrait", 0, QEMU_OPTION_portrait },
7940 { "k", HAS_ARG, QEMU_OPTION_k },
7941 #ifdef HAS_AUDIO
7942 { "audio-help", 0, QEMU_OPTION_audio_help },
7943 { "soundhw", HAS_ARG, QEMU_OPTION_soundhw },
7944 #endif
7945
7946 { "net", HAS_ARG, QEMU_OPTION_net},
7947 #ifdef CONFIG_SLIRP
7948 { "tftp", HAS_ARG, QEMU_OPTION_tftp },
7949 { "bootp", HAS_ARG, QEMU_OPTION_bootp },
7950 #ifndef _WIN32
7951 { "smb", HAS_ARG, QEMU_OPTION_smb },
7952 #endif
7953 { "redir", HAS_ARG, QEMU_OPTION_redir },
7954 #endif
7955
7956 { "kernel", HAS_ARG, QEMU_OPTION_kernel },
7957 { "append", HAS_ARG, QEMU_OPTION_append },
7958 { "initrd", HAS_ARG, QEMU_OPTION_initrd },
7959
7960 { "S", 0, QEMU_OPTION_S },
7961 { "s", 0, QEMU_OPTION_s },
7962 { "p", HAS_ARG, QEMU_OPTION_p },
7963 { "d", HAS_ARG, QEMU_OPTION_d },
7964 { "hdachs", HAS_ARG, QEMU_OPTION_hdachs },
7965 { "L", HAS_ARG, QEMU_OPTION_L },
7966 { "bios", HAS_ARG, QEMU_OPTION_bios },
7967 #ifdef USE_KQEMU
7968 { "no-kqemu", 0, QEMU_OPTION_no_kqemu },
7969 { "kernel-kqemu", 0, QEMU_OPTION_kernel_kqemu },
7970 #endif
7971 #if defined(TARGET_PPC) || defined(TARGET_SPARC)
7972 { "g", 1, QEMU_OPTION_g },
7973 #endif
7974 { "localtime", 0, QEMU_OPTION_localtime },
7975 { "std-vga", 0, QEMU_OPTION_std_vga },
7976 { "echr", HAS_ARG, QEMU_OPTION_echr },
7977 { "monitor", HAS_ARG, QEMU_OPTION_monitor },
7978 { "serial", HAS_ARG, QEMU_OPTION_serial },
7979 { "parallel", HAS_ARG, QEMU_OPTION_parallel },
7980 { "loadvm", HAS_ARG, QEMU_OPTION_loadvm },
7981 { "full-screen", 0, QEMU_OPTION_full_screen },
7982 #ifdef CONFIG_SDL
7983 { "no-frame", 0, QEMU_OPTION_no_frame },
7984 { "alt-grab", 0, QEMU_OPTION_alt_grab },
7985 { "no-quit", 0, QEMU_OPTION_no_quit },
7986 #endif
7987 { "pidfile", HAS_ARG, QEMU_OPTION_pidfile },
7988 { "win2k-hack", 0, QEMU_OPTION_win2k_hack },
7989 { "usbdevice", HAS_ARG, QEMU_OPTION_usbdevice },
7990 { "smp", HAS_ARG, QEMU_OPTION_smp },
7991 { "vnc", HAS_ARG, QEMU_OPTION_vnc },
7992 #ifdef CONFIG_CURSES
7993 { "curses", 0, QEMU_OPTION_curses },
7994 #endif
7995
7996 /* temporary options */
7997 { "usb", 0, QEMU_OPTION_usb },
7998 { "cirrusvga", 0, QEMU_OPTION_cirrusvga },
7999 { "vmwarevga", 0, QEMU_OPTION_vmsvga },
8000 { "no-acpi", 0, QEMU_OPTION_no_acpi },
8001 { "no-reboot", 0, QEMU_OPTION_no_reboot },
8002 { "no-shutdown", 0, QEMU_OPTION_no_shutdown },
8003 { "show-cursor", 0, QEMU_OPTION_show_cursor },
8004 { "daemonize", 0, QEMU_OPTION_daemonize },
8005 { "option-rom", HAS_ARG, QEMU_OPTION_option_rom },
8006 #if defined(TARGET_ARM) || defined(TARGET_M68K)
8007 { "semihosting", 0, QEMU_OPTION_semihosting },
8008 #endif
8009 { "name", HAS_ARG, QEMU_OPTION_name },
8010 #if defined(TARGET_SPARC)
8011 { "prom-env", HAS_ARG, QEMU_OPTION_prom_env },
8012 #endif
8013 #if defined(TARGET_ARM)
8014 { "old-param", 0, QEMU_OPTION_old_param },
8015 #endif
8016 { "clock", HAS_ARG, QEMU_OPTION_clock },
8017 { "startdate", HAS_ARG, QEMU_OPTION_startdate },
8018 { "tb-size", HAS_ARG, QEMU_OPTION_tb_size },
8019 { "icount", HAS_ARG, QEMU_OPTION_icount },
8020 { NULL },
8021 };
8022
8023 /* password input */
8024
8025 int qemu_key_check(BlockDriverState *bs, const char *name)
8026 {
8027 char password[256];
8028 int i;
8029
8030 if (!bdrv_is_encrypted(bs))
8031 return 0;
8032
8033 term_printf("%s is encrypted.\n", name);
8034 for(i = 0; i < 3; i++) {
8035 monitor_readline("Password: ", 1, password, sizeof(password));
8036 if (bdrv_set_key(bs, password) == 0)
8037 return 0;
8038 term_printf("invalid password\n");
8039 }
8040 return -EPERM;
8041 }
8042
8043 static BlockDriverState *get_bdrv(int index)
8044 {
8045 if (index > nb_drives)
8046 return NULL;
8047 return drives_table[index].bdrv;
8048 }
8049
8050 static void read_passwords(void)
8051 {
8052 BlockDriverState *bs;
8053 int i;
8054
8055 for(i = 0; i < 6; i++) {
8056 bs = get_bdrv(i);
8057 if (bs)
8058 qemu_key_check(bs, bdrv_get_device_name(bs));
8059 }
8060 }
8061
8062 #ifdef HAS_AUDIO
8063 struct soundhw soundhw[] = {
8064 #ifdef HAS_AUDIO_CHOICE
8065 #if defined(TARGET_I386) || defined(TARGET_MIPS)
8066 {
8067 "pcspk",
8068 "PC speaker",
8069 0,
8070 1,
8071 { .init_isa = pcspk_audio_init }
8072 },
8073 #endif
8074 {
8075 "sb16",
8076 "Creative Sound Blaster 16",
8077 0,
8078 1,
8079 { .init_isa = SB16_init }
8080 },
8081
8082 #ifdef CONFIG_CS4231A
8083 {
8084 "cs4231a",
8085 "CS4231A",
8086 0,
8087 1,
8088 { .init_isa = cs4231a_init }
8089 },
8090 #endif
8091
8092 #ifdef CONFIG_ADLIB
8093 {
8094 "adlib",
8095 #ifdef HAS_YMF262
8096 "Yamaha YMF262 (OPL3)",
8097 #else
8098 "Yamaha YM3812 (OPL2)",
8099 #endif
8100 0,
8101 1,
8102 { .init_isa = Adlib_init }
8103 },
8104 #endif
8105
8106 #ifdef CONFIG_GUS
8107 {
8108 "gus",
8109 "Gravis Ultrasound GF1",
8110 0,
8111 1,
8112 { .init_isa = GUS_init }
8113 },
8114 #endif
8115
8116 #ifdef CONFIG_AC97
8117 {
8118 "ac97",
8119 "Intel 82801AA AC97 Audio",
8120 0,
8121 0,
8122 { .init_pci = ac97_init }
8123 },
8124 #endif
8125
8126 {
8127 "es1370",
8128 "ENSONIQ AudioPCI ES1370",
8129 0,
8130 0,
8131 { .init_pci = es1370_init }
8132 },
8133 #endif
8134
8135 { NULL, NULL, 0, 0, { NULL } }
8136 };
8137
8138 static void select_soundhw (const char *optarg)
8139 {
8140 struct soundhw *c;
8141
8142 if (*optarg == '?') {
8143 show_valid_cards:
8144
8145 printf ("Valid sound card names (comma separated):\n");
8146 for (c = soundhw; c->name; ++c) {
8147 printf ("%-11s %s\n", c->name, c->descr);
8148 }
8149 printf ("\n-soundhw all will enable all of the above\n");
8150 exit (*optarg != '?');
8151 }
8152 else {
8153 size_t l;
8154 const char *p;
8155 char *e;
8156 int bad_card = 0;
8157
8158 if (!strcmp (optarg, "all")) {
8159 for (c = soundhw; c->name; ++c) {
8160 c->enabled = 1;
8161 }
8162 return;
8163 }
8164
8165 p = optarg;
8166 while (*p) {
8167 e = strchr (p, ',');
8168 l = !e ? strlen (p) : (size_t) (e - p);
8169
8170 for (c = soundhw; c->name; ++c) {
8171 if (!strncmp (c->name, p, l)) {
8172 c->enabled = 1;
8173 break;
8174 }
8175 }
8176
8177 if (!c->name) {
8178 if (l > 80) {
8179 fprintf (stderr,
8180 "Unknown sound card name (too big to show)\n");
8181 }
8182 else {
8183 fprintf (stderr, "Unknown sound card name `%.*s'\n",
8184 (int) l, p);
8185 }
8186 bad_card = 1;
8187 }
8188 p += l + (e != NULL);
8189 }
8190
8191 if (bad_card)
8192 goto show_valid_cards;
8193 }
8194 }
8195 #endif
8196
8197 #ifdef _WIN32
8198 static BOOL WINAPI qemu_ctrl_handler(DWORD type)
8199 {
8200 exit(STATUS_CONTROL_C_EXIT);
8201 return TRUE;
8202 }
8203 #endif
8204
8205 #define MAX_NET_CLIENTS 32
8206
8207 #ifndef _WIN32
8208
8209 static void termsig_handler(int signal)
8210 {
8211 qemu_system_shutdown_request();
8212 }
8213
8214 void termsig_setup(void)
8215 {
8216 struct sigaction act;
8217
8218 memset(&act, 0, sizeof(act));
8219 act.sa_handler = termsig_handler;
8220 sigaction(SIGINT, &act, NULL);
8221 sigaction(SIGHUP, &act, NULL);
8222 sigaction(SIGTERM, &act, NULL);
8223 }
8224
8225 #endif
8226
8227 int main(int argc, char **argv)
8228 {
8229 #ifdef CONFIG_GDBSTUB
8230 int use_gdbstub;
8231 const char *gdbstub_port;
8232 #endif
8233 uint32_t boot_devices_bitmap = 0;
8234 int i;
8235 int snapshot, linux_boot, net_boot;
8236 const char *initrd_filename;
8237 const char *kernel_filename, *kernel_cmdline;
8238 const char *boot_devices = "";
8239 DisplayState *ds = &display_state;
8240 int cyls, heads, secs, translation;
8241 const char *net_clients[MAX_NET_CLIENTS];
8242 int nb_net_clients;
8243 int hda_index;
8244 int optind;
8245 const char *r, *optarg;
8246 CharDriverState *monitor_hd;
8247 const char *monitor_device;
8248 const char *serial_devices[MAX_SERIAL_PORTS];
8249 int serial_device_index;
8250 const char *parallel_devices[MAX_PARALLEL_PORTS];
8251 int parallel_device_index;
8252 const char *loadvm = NULL;
8253 QEMUMachine *machine;
8254 const char *cpu_model;
8255 const char *usb_devices[MAX_USB_CMDLINE];
8256 int usb_devices_index;
8257 int fds[2];
8258 int tb_size;
8259 const char *pid_file = NULL;
8260 VLANState *vlan;
8261
8262 LIST_INIT (&vm_change_state_head);
8263 #ifndef _WIN32
8264 {
8265 struct sigaction act;
8266 sigfillset(&act.sa_mask);
8267 act.sa_flags = 0;
8268 act.sa_handler = SIG_IGN;
8269 sigaction(SIGPIPE, &act, NULL);
8270 }
8271 #else
8272 SetConsoleCtrlHandler(qemu_ctrl_handler, TRUE);
8273 /* Note: cpu_interrupt() is currently not SMP safe, so we force
8274 QEMU to run on a single CPU */
8275 {
8276 HANDLE h;
8277 DWORD mask, smask;
8278 int i;
8279 h = GetCurrentProcess();
8280 if (GetProcessAffinityMask(h, &mask, &smask)) {
8281 for(i = 0; i < 32; i++) {
8282 if (mask & (1 << i))
8283 break;
8284 }
8285 if (i != 32) {
8286 mask = 1 << i;
8287 SetProcessAffinityMask(h, mask);
8288 }
8289 }
8290 }
8291 #endif
8292
8293 register_machines();
8294 machine = first_machine;
8295 cpu_model = NULL;
8296 initrd_filename = NULL;
8297 ram_size = 0;
8298 vga_ram_size = VGA_RAM_SIZE;
8299 #ifdef CONFIG_GDBSTUB
8300 use_gdbstub = 0;
8301 gdbstub_port = DEFAULT_GDBSTUB_PORT;
8302 #endif
8303 snapshot = 0;
8304 nographic = 0;
8305 curses = 0;
8306 kernel_filename = NULL;
8307 kernel_cmdline = "";
8308 cyls = heads = secs = 0;
8309 translation = BIOS_ATA_TRANSLATION_AUTO;
8310 monitor_device = "vc";
8311
8312 serial_devices[0] = "vc:80Cx24C";
8313 for(i = 1; i < MAX_SERIAL_PORTS; i++)
8314 serial_devices[i] = NULL;
8315 serial_device_index = 0;
8316
8317 parallel_devices[0] = "vc:640x480";
8318 for(i = 1; i < MAX_PARALLEL_PORTS; i++)
8319 parallel_devices[i] = NULL;
8320 parallel_device_index = 0;
8321
8322 usb_devices_index = 0;
8323
8324 nb_net_clients = 0;
8325 nb_drives = 0;
8326 nb_drives_opt = 0;
8327 hda_index = -1;
8328
8329 nb_nics = 0;
8330
8331 tb_size = 0;
8332
8333 optind = 1;
8334 for(;;) {
8335 if (optind >= argc)
8336 break;
8337 r = argv[optind];
8338 if (r[0] != '-') {
8339 hda_index = drive_add(argv[optind++], HD_ALIAS, 0);
8340 } else {
8341 const QEMUOption *popt;
8342
8343 optind++;
8344 /* Treat --foo the same as -foo. */
8345 if (r[1] == '-')
8346 r++;
8347 popt = qemu_options;
8348 for(;;) {
8349 if (!popt->name) {
8350 fprintf(stderr, "%s: invalid option -- '%s'\n",
8351 argv[0], r);
8352 exit(1);
8353 }
8354 if (!strcmp(popt->name, r + 1))
8355 break;
8356 popt++;
8357 }
8358 if (popt->flags & HAS_ARG) {
8359 if (optind >= argc) {
8360 fprintf(stderr, "%s: option '%s' requires an argument\n",
8361 argv[0], r);
8362 exit(1);
8363 }
8364 optarg = argv[optind++];
8365 } else {
8366 optarg = NULL;
8367 }
8368
8369 switch(popt->index) {
8370 case QEMU_OPTION_M:
8371 machine = find_machine(optarg);
8372 if (!machine) {
8373 QEMUMachine *m;
8374 printf("Supported machines are:\n");
8375 for(m = first_machine; m != NULL; m = m->next) {
8376 printf("%-10s %s%s\n",
8377 m->name, m->desc,
8378 m == first_machine ? " (default)" : "");
8379 }
8380 exit(*optarg != '?');
8381 }
8382 break;
8383 case QEMU_OPTION_cpu:
8384 /* hw initialization will check this */
8385 if (*optarg == '?') {
8386 /* XXX: implement xxx_cpu_list for targets that still miss it */
8387 #if defined(cpu_list)
8388 cpu_list(stdout, &fprintf);
8389 #endif
8390 exit(0);
8391 } else {
8392 cpu_model = optarg;
8393 }
8394 break;
8395 case QEMU_OPTION_initrd:
8396 initrd_filename = optarg;
8397 break;
8398 case QEMU_OPTION_hda:
8399 if (cyls == 0)
8400 hda_index = drive_add(optarg, HD_ALIAS, 0);
8401 else
8402 hda_index = drive_add(optarg, HD_ALIAS
8403 ",cyls=%d,heads=%d,secs=%d%s",
8404 0, cyls, heads, secs,
8405 translation == BIOS_ATA_TRANSLATION_LBA ?
8406 ",trans=lba" :
8407 translation == BIOS_ATA_TRANSLATION_NONE ?
8408 ",trans=none" : "");
8409 break;
8410 case QEMU_OPTION_hdb:
8411 case QEMU_OPTION_hdc:
8412 case QEMU_OPTION_hdd:
8413 drive_add(optarg, HD_ALIAS, popt->index - QEMU_OPTION_hda);
8414 break;
8415 case QEMU_OPTION_drive:
8416 drive_add(NULL, "%s", optarg);
8417 break;
8418 case QEMU_OPTION_mtdblock:
8419 drive_add(optarg, MTD_ALIAS);
8420 break;
8421 case QEMU_OPTION_sd:
8422 drive_add(optarg, SD_ALIAS);
8423 break;
8424 case QEMU_OPTION_pflash:
8425 drive_add(optarg, PFLASH_ALIAS);
8426 break;
8427 case QEMU_OPTION_snapshot:
8428 snapshot = 1;
8429 break;
8430 case QEMU_OPTION_hdachs:
8431 {
8432 const char *p;
8433 p = optarg;
8434 cyls = strtol(p, (char **)&p, 0);
8435 if (cyls < 1 || cyls > 16383)
8436 goto chs_fail;
8437 if (*p != ',')
8438 goto chs_fail;
8439 p++;
8440 heads = strtol(p, (char **)&p, 0);
8441 if (heads < 1 || heads > 16)
8442 goto chs_fail;
8443 if (*p != ',')
8444 goto chs_fail;
8445 p++;
8446 secs = strtol(p, (char **)&p, 0);
8447 if (secs < 1 || secs > 63)
8448 goto chs_fail;
8449 if (*p == ',') {
8450 p++;
8451 if (!strcmp(p, "none"))
8452 translation = BIOS_ATA_TRANSLATION_NONE;
8453 else if (!strcmp(p, "lba"))
8454 translation = BIOS_ATA_TRANSLATION_LBA;
8455 else if (!strcmp(p, "auto"))
8456 translation = BIOS_ATA_TRANSLATION_AUTO;
8457 else
8458 goto chs_fail;
8459 } else if (*p != '\0') {
8460 chs_fail:
8461 fprintf(stderr, "qemu: invalid physical CHS format\n");
8462 exit(1);
8463 }
8464 if (hda_index != -1)
8465 snprintf(drives_opt[hda_index].opt,
8466 sizeof(drives_opt[hda_index].opt),
8467 HD_ALIAS ",cyls=%d,heads=%d,secs=%d%s",
8468 0, cyls, heads, secs,
8469 translation == BIOS_ATA_TRANSLATION_LBA ?
8470 ",trans=lba" :
8471 translation == BIOS_ATA_TRANSLATION_NONE ?
8472 ",trans=none" : "");
8473 }
8474 break;
8475 case QEMU_OPTION_nographic:
8476 nographic = 1;
8477 break;
8478 #ifdef CONFIG_CURSES
8479 case QEMU_OPTION_curses:
8480 curses = 1;
8481 break;
8482 #endif
8483 case QEMU_OPTION_portrait:
8484 graphic_rotate = 1;
8485 break;
8486 case QEMU_OPTION_kernel:
8487 kernel_filename = optarg;
8488 break;
8489 case QEMU_OPTION_append:
8490 kernel_cmdline = optarg;
8491 break;
8492 case QEMU_OPTION_cdrom:
8493 drive_add(optarg, CDROM_ALIAS);
8494 break;
8495 case QEMU_OPTION_boot:
8496 boot_devices = optarg;
8497 /* We just do some generic consistency checks */
8498 {
8499 /* Could easily be extended to 64 devices if needed */
8500 const char *p;
8501
8502 boot_devices_bitmap = 0;
8503 for (p = boot_devices; *p != '\0'; p++) {
8504 /* Allowed boot devices are:
8505 * a b : floppy disk drives
8506 * c ... f : IDE disk drives
8507 * g ... m : machine implementation dependant drives
8508 * n ... p : network devices
8509 * It's up to each machine implementation to check
8510 * if the given boot devices match the actual hardware
8511 * implementation and firmware features.
8512 */
8513 if (*p < 'a' || *p > 'q') {
8514 fprintf(stderr, "Invalid boot device '%c'\n", *p);
8515 exit(1);
8516 }
8517 if (boot_devices_bitmap & (1 << (*p - 'a'))) {
8518 fprintf(stderr,
8519 "Boot device '%c' was given twice\n",*p);
8520 exit(1);
8521 }
8522 boot_devices_bitmap |= 1 << (*p - 'a');
8523 }
8524 }
8525 break;
8526 case QEMU_OPTION_fda:
8527 case QEMU_OPTION_fdb:
8528 drive_add(optarg, FD_ALIAS, popt->index - QEMU_OPTION_fda);
8529 break;
8530 #ifdef TARGET_I386
8531 case QEMU_OPTION_no_fd_bootchk:
8532 fd_bootchk = 0;
8533 break;
8534 #endif
8535 case QEMU_OPTION_net:
8536 if (nb_net_clients >= MAX_NET_CLIENTS) {
8537 fprintf(stderr, "qemu: too many network clients\n");
8538 exit(1);
8539 }
8540 net_clients[nb_net_clients] = optarg;
8541 nb_net_clients++;
8542 break;
8543 #ifdef CONFIG_SLIRP
8544 case QEMU_OPTION_tftp:
8545 tftp_prefix = optarg;
8546 break;
8547 case QEMU_OPTION_bootp:
8548 bootp_filename = optarg;
8549 break;
8550 #ifndef _WIN32
8551 case QEMU_OPTION_smb:
8552 net_slirp_smb(optarg);
8553 break;
8554 #endif
8555 case QEMU_OPTION_redir:
8556 net_slirp_redir(optarg);
8557 break;
8558 #endif
8559 #ifdef HAS_AUDIO
8560 case QEMU_OPTION_audio_help:
8561 AUD_help ();
8562 exit (0);
8563 break;
8564 case QEMU_OPTION_soundhw:
8565 select_soundhw (optarg);
8566 break;
8567 #endif
8568 case QEMU_OPTION_h:
8569 help(0);
8570 break;
8571 case QEMU_OPTION_m: {
8572 uint64_t value;
8573 char *ptr;
8574
8575 value = strtoul(optarg, &ptr, 10);
8576 switch (*ptr) {
8577 case 0: case 'M': case 'm':
8578 value <<= 20;
8579 break;
8580 case 'G': case 'g':
8581 value <<= 30;
8582 break;
8583 default:
8584 fprintf(stderr, "qemu: invalid ram size: %s\n", optarg);
8585 exit(1);
8586 }
8587
8588 /* On 32-bit hosts, QEMU is limited by virtual address space */
8589 if (value > (2047 << 20)
8590 #ifndef USE_KQEMU
8591 && HOST_LONG_BITS == 32
8592 #endif
8593 ) {
8594 fprintf(stderr, "qemu: at most 2047 MB RAM can be simulated\n");
8595 exit(1);
8596 }
8597 if (value != (uint64_t)(ram_addr_t)value) {
8598 fprintf(stderr, "qemu: ram size too large\n");
8599 exit(1);
8600 }
8601 ram_size = value;
8602 break;
8603 }
8604 case QEMU_OPTION_d:
8605 {
8606 int mask;
8607 CPULogItem *item;
8608
8609 mask = cpu_str_to_log_mask(optarg);
8610 if (!mask) {
8611 printf("Log items (comma separated):\n");
8612 for(item = cpu_log_items; item->mask != 0; item++) {
8613 printf("%-10s %s\n", item->name, item->help);
8614 }
8615 exit(1);
8616 }
8617 cpu_set_log(mask);
8618 }
8619 break;
8620 #ifdef CONFIG_GDBSTUB
8621 case QEMU_OPTION_s:
8622 use_gdbstub = 1;
8623 break;
8624 case QEMU_OPTION_p:
8625 gdbstub_port = optarg;
8626 break;
8627 #endif
8628 case QEMU_OPTION_L:
8629 bios_dir = optarg;
8630 break;
8631 case QEMU_OPTION_bios:
8632 bios_name = optarg;
8633 break;
8634 case QEMU_OPTION_S:
8635 autostart = 0;
8636 break;
8637 case QEMU_OPTION_k:
8638 keyboard_layout = optarg;
8639 break;
8640 case QEMU_OPTION_localtime:
8641 rtc_utc = 0;
8642 break;
8643 case QEMU_OPTION_cirrusvga:
8644 cirrus_vga_enabled = 1;
8645 vmsvga_enabled = 0;
8646 break;
8647 case QEMU_OPTION_vmsvga:
8648 cirrus_vga_enabled = 0;
8649 vmsvga_enabled = 1;
8650 break;
8651 case QEMU_OPTION_std_vga:
8652 cirrus_vga_enabled = 0;
8653 vmsvga_enabled = 0;
8654 break;
8655 case QEMU_OPTION_g:
8656 {
8657 const char *p;
8658 int w, h, depth;
8659 p = optarg;
8660 w = strtol(p, (char **)&p, 10);
8661 if (w <= 0) {
8662 graphic_error:
8663 fprintf(stderr, "qemu: invalid resolution or depth\n");
8664 exit(1);
8665 }
8666 if (*p != 'x')
8667 goto graphic_error;
8668 p++;
8669 h = strtol(p, (char **)&p, 10);
8670 if (h <= 0)
8671 goto graphic_error;
8672 if (*p == 'x') {
8673 p++;
8674 depth = strtol(p, (char **)&p, 10);
8675 if (depth != 8 && depth != 15 && depth != 16 &&
8676 depth != 24 && depth != 32)
8677 goto graphic_error;
8678 } else if (*p == '\0') {
8679 depth = graphic_depth;
8680 } else {
8681 goto graphic_error;
8682 }
8683
8684 graphic_width = w;
8685 graphic_height = h;
8686 graphic_depth = depth;
8687 }
8688 break;
8689 case QEMU_OPTION_echr:
8690 {
8691 char *r;
8692 term_escape_char = strtol(optarg, &r, 0);
8693 if (r == optarg)
8694 printf("Bad argument to echr\n");
8695 break;
8696 }
8697 case QEMU_OPTION_monitor:
8698 monitor_device = optarg;
8699 break;
8700 case QEMU_OPTION_serial:
8701 if (serial_device_index >= MAX_SERIAL_PORTS) {
8702 fprintf(stderr, "qemu: too many serial ports\n");
8703 exit(1);
8704 }
8705 serial_devices[serial_device_index] = optarg;
8706 serial_device_index++;
8707 break;
8708 case QEMU_OPTION_parallel:
8709 if (parallel_device_index >= MAX_PARALLEL_PORTS) {
8710 fprintf(stderr, "qemu: too many parallel ports\n");
8711 exit(1);
8712 }
8713 parallel_devices[parallel_device_index] = optarg;
8714 parallel_device_index++;
8715 break;
8716 case QEMU_OPTION_loadvm:
8717 loadvm = optarg;
8718 break;
8719 case QEMU_OPTION_full_screen:
8720 full_screen = 1;
8721 break;
8722 #ifdef CONFIG_SDL
8723 case QEMU_OPTION_no_frame:
8724 no_frame = 1;
8725 break;
8726 case QEMU_OPTION_alt_grab:
8727 alt_grab = 1;
8728 break;
8729 case QEMU_OPTION_no_quit:
8730 no_quit = 1;
8731 break;
8732 #endif
8733 case QEMU_OPTION_pidfile:
8734 pid_file = optarg;
8735 break;
8736 #ifdef TARGET_I386
8737 case QEMU_OPTION_win2k_hack:
8738 win2k_install_hack = 1;
8739 break;
8740 #endif
8741 #ifdef USE_KQEMU
8742 case QEMU_OPTION_no_kqemu:
8743 kqemu_allowed = 0;
8744 break;
8745 case QEMU_OPTION_kernel_kqemu:
8746 kqemu_allowed = 2;
8747 break;
8748 #endif
8749 case QEMU_OPTION_usb:
8750 usb_enabled = 1;
8751 break;
8752 case QEMU_OPTION_usbdevice:
8753 usb_enabled = 1;
8754 if (usb_devices_index >= MAX_USB_CMDLINE) {
8755 fprintf(stderr, "Too many USB devices\n");
8756 exit(1);
8757 }
8758 usb_devices[usb_devices_index] = optarg;
8759 usb_devices_index++;
8760 break;
8761 case QEMU_OPTION_smp:
8762 smp_cpus = atoi(optarg);
8763 if (smp_cpus < 1 || smp_cpus > MAX_CPUS) {
8764 fprintf(stderr, "Invalid number of CPUs\n");
8765 exit(1);
8766 }
8767 break;
8768 case QEMU_OPTION_vnc:
8769 vnc_display = optarg;
8770 break;
8771 case QEMU_OPTION_no_acpi:
8772 acpi_enabled = 0;
8773 break;
8774 case QEMU_OPTION_no_reboot:
8775 no_reboot = 1;
8776 break;
8777 case QEMU_OPTION_no_shutdown:
8778 no_shutdown = 1;
8779 break;
8780 case QEMU_OPTION_show_cursor:
8781 cursor_hide = 0;
8782 break;
8783 case QEMU_OPTION_daemonize:
8784 daemonize = 1;
8785 break;
8786 case QEMU_OPTION_option_rom:
8787 if (nb_option_roms >= MAX_OPTION_ROMS) {
8788 fprintf(stderr, "Too many option ROMs\n");
8789 exit(1);
8790 }
8791 option_rom[nb_option_roms] = optarg;
8792 nb_option_roms++;
8793 break;
8794 case QEMU_OPTION_semihosting:
8795 semihosting_enabled = 1;
8796 break;
8797 case QEMU_OPTION_name:
8798 qemu_name = optarg;
8799 break;
8800 #ifdef TARGET_SPARC
8801 case QEMU_OPTION_prom_env:
8802 if (nb_prom_envs >= MAX_PROM_ENVS) {
8803 fprintf(stderr, "Too many prom variables\n");
8804 exit(1);
8805 }
8806 prom_envs[nb_prom_envs] = optarg;
8807 nb_prom_envs++;
8808 break;
8809 #endif
8810 #ifdef TARGET_ARM
8811 case QEMU_OPTION_old_param:
8812 old_param = 1;
8813 break;
8814 #endif
8815 case QEMU_OPTION_clock:
8816 configure_alarms(optarg);
8817 break;
8818 case QEMU_OPTION_startdate:
8819 {
8820 struct tm tm;
8821 time_t rtc_start_date;
8822 if (!strcmp(optarg, "now")) {
8823 rtc_date_offset = -1;
8824 } else {
8825 if (sscanf(optarg, "%d-%d-%dT%d:%d:%d",
8826 &tm.tm_year,
8827 &tm.tm_mon,
8828 &tm.tm_mday,
8829 &tm.tm_hour,
8830 &tm.tm_min,
8831 &tm.tm_sec) == 6) {
8832 /* OK */
8833 } else if (sscanf(optarg, "%d-%d-%d",
8834 &tm.tm_year,
8835 &tm.tm_mon,
8836 &tm.tm_mday) == 3) {
8837 tm.tm_hour = 0;
8838 tm.tm_min = 0;
8839 tm.tm_sec = 0;
8840 } else {
8841 goto date_fail;
8842 }
8843 tm.tm_year -= 1900;
8844 tm.tm_mon--;
8845 rtc_start_date = mktimegm(&tm);
8846 if (rtc_start_date == -1) {
8847 date_fail:
8848 fprintf(stderr, "Invalid date format. Valid format are:\n"
8849 "'now' or '2006-06-17T16:01:21' or '2006-06-17'\n");
8850 exit(1);
8851 }
8852 rtc_date_offset = time(NULL) - rtc_start_date;
8853 }
8854 }
8855 break;
8856 case QEMU_OPTION_tb_size:
8857 tb_size = strtol(optarg, NULL, 0);
8858 if (tb_size < 0)
8859 tb_size = 0;
8860 break;
8861 case QEMU_OPTION_icount:
8862 use_icount = 1;
8863 if (strcmp(optarg, "auto") == 0) {
8864 icount_time_shift = -1;
8865 } else {
8866 icount_time_shift = strtol(optarg, NULL, 0);
8867 }
8868 break;
8869 }
8870 }
8871 }
8872
8873 if (nographic) {
8874 if (serial_device_index == 0)
8875 serial_devices[0] = "stdio";
8876 if (parallel_device_index == 0)
8877 parallel_devices[0] = "null";
8878 if (strncmp(monitor_device, "vc", 2) == 0)
8879 monitor_device = "stdio";
8880 }
8881
8882 #ifndef _WIN32
8883 if (daemonize) {
8884 pid_t pid;
8885
8886 if (pipe(fds) == -1)
8887 exit(1);
8888
8889 pid = fork();
8890 if (pid > 0) {
8891 uint8_t status;
8892 ssize_t len;
8893
8894 close(fds[1]);
8895
8896 again:
8897 len = read(fds[0], &status, 1);
8898 if (len == -1 && (errno == EINTR))
8899 goto again;
8900
8901 if (len != 1)
8902 exit(1);
8903 else if (status == 1) {
8904 fprintf(stderr, "Could not acquire pidfile\n");
8905 exit(1);
8906 } else
8907 exit(0);
8908 } else if (pid < 0)
8909 exit(1);
8910
8911 setsid();
8912
8913 pid = fork();
8914 if (pid > 0)
8915 exit(0);
8916 else if (pid < 0)
8917 exit(1);
8918
8919 umask(027);
8920
8921 signal(SIGTSTP, SIG_IGN);
8922 signal(SIGTTOU, SIG_IGN);
8923 signal(SIGTTIN, SIG_IGN);
8924 }
8925 #endif
8926
8927 if (pid_file && qemu_create_pidfile(pid_file) != 0) {
8928 if (daemonize) {
8929 uint8_t status = 1;
8930 write(fds[1], &status, 1);
8931 } else
8932 fprintf(stderr, "Could not acquire pid file\n");
8933 exit(1);
8934 }
8935
8936 #ifdef USE_KQEMU
8937 if (smp_cpus > 1)
8938 kqemu_allowed = 0;
8939 #endif
8940 linux_boot = (kernel_filename != NULL);
8941 net_boot = (boot_devices_bitmap >> ('n' - 'a')) & 0xF;
8942
8943 if (!linux_boot && net_boot == 0 &&
8944 !machine->nodisk_ok && nb_drives_opt == 0)
8945 help(1);
8946
8947 if (!linux_boot && *kernel_cmdline != '\0') {
8948 fprintf(stderr, "-append only allowed with -kernel option\n");
8949 exit(1);
8950 }
8951
8952 if (!linux_boot && initrd_filename != NULL) {
8953 fprintf(stderr, "-initrd only allowed with -kernel option\n");
8954 exit(1);
8955 }
8956
8957 /* boot to floppy or the default cd if no hard disk defined yet */
8958 if (!boot_devices[0]) {
8959 boot_devices = "cad";
8960 }
8961 setvbuf(stdout, NULL, _IOLBF, 0);
8962
8963 init_timers();
8964 init_timer_alarm();
8965 qemu_aio_init();
8966 if (use_icount && icount_time_shift < 0) {
8967 use_icount = 2;
8968 /* 125MIPS seems a reasonable initial guess at the guest speed.
8969 It will be corrected fairly quickly anyway. */
8970 icount_time_shift = 3;
8971 init_icount_adjust();
8972 }
8973
8974 #ifdef _WIN32
8975 socket_init();
8976 #endif
8977
8978 /* init network clients */
8979 if (nb_net_clients == 0) {
8980 /* if no clients, we use a default config */
8981 net_clients[0] = "nic";
8982 net_clients[1] = "user";
8983 nb_net_clients = 2;
8984 }
8985
8986 for(i = 0;i < nb_net_clients; i++) {
8987 if (net_client_parse(net_clients[i]) < 0)
8988 exit(1);
8989 }
8990 for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) {
8991 if (vlan->nb_guest_devs == 0 && vlan->nb_host_devs == 0)
8992 continue;
8993 if (vlan->nb_guest_devs == 0)
8994 fprintf(stderr, "Warning: vlan %d with no nics\n", vlan->id);
8995 if (vlan->nb_host_devs == 0)
8996 fprintf(stderr,
8997 "Warning: vlan %d is not connected to host network\n",
8998 vlan->id);
8999 }
9000
9001 #ifdef TARGET_I386
9002 /* XXX: this should be moved in the PC machine instantiation code */
9003 if (net_boot != 0) {
9004 int netroms = 0;
9005 for (i = 0; i < nb_nics && i < 4; i++) {
9006 const char *model = nd_table[i].model;
9007 char buf[1024];
9008 if (net_boot & (1 << i)) {
9009 if (model == NULL)
9010 model = "ne2k_pci";
9011 snprintf(buf, sizeof(buf), "%s/pxe-%s.bin", bios_dir, model);
9012 if (get_image_size(buf) > 0) {
9013 if (nb_option_roms >= MAX_OPTION_ROMS) {
9014 fprintf(stderr, "Too many option ROMs\n");
9015 exit(1);
9016 }
9017 option_rom[nb_option_roms] = strdup(buf);
9018 nb_option_roms++;
9019 netroms++;
9020 }
9021 }
9022 }
9023 if (netroms == 0) {
9024 fprintf(stderr, "No valid PXE rom found for network device\n");
9025 exit(1);
9026 }
9027 }
9028 #endif
9029
9030 /* init the memory */
9031 phys_ram_size = machine->ram_require & ~RAMSIZE_FIXED;
9032
9033 if (machine->ram_require & RAMSIZE_FIXED) {
9034 if (ram_size > 0) {
9035 if (ram_size < phys_ram_size) {
9036 fprintf(stderr, "Machine `%s' requires %llu bytes of memory\n",
9037 machine->name, (unsigned long long) phys_ram_size);
9038 exit(-1);
9039 }
9040
9041 phys_ram_size = ram_size;
9042 } else
9043 ram_size = phys_ram_size;
9044 } else {
9045 if (ram_size == 0)
9046 ram_size = DEFAULT_RAM_SIZE * 1024 * 1024;
9047
9048 phys_ram_size += ram_size;
9049 }
9050
9051 phys_ram_base = qemu_vmalloc(phys_ram_size);
9052 if (!phys_ram_base) {
9053 fprintf(stderr, "Could not allocate physical memory\n");
9054 exit(1);
9055 }
9056
9057 /* init the dynamic translator */
9058 cpu_exec_init_all(tb_size * 1024 * 1024);
9059
9060 bdrv_init();
9061
9062 /* we always create the cdrom drive, even if no disk is there */
9063
9064 if (nb_drives_opt < MAX_DRIVES)
9065 drive_add(NULL, CDROM_ALIAS);
9066
9067 /* we always create at least one floppy */
9068
9069 if (nb_drives_opt < MAX_DRIVES)
9070 drive_add(NULL, FD_ALIAS, 0);
9071
9072 /* we always create one sd slot, even if no card is in it */
9073
9074 if (nb_drives_opt < MAX_DRIVES)
9075 drive_add(NULL, SD_ALIAS);
9076
9077 /* open the virtual block devices */
9078
9079 for(i = 0; i < nb_drives_opt; i++)
9080 if (drive_init(&drives_opt[i], snapshot, machine) == -1)
9081 exit(1);
9082
9083 register_savevm("timer", 0, 2, timer_save, timer_load, NULL);
9084 register_savevm("ram", 0, 2, ram_save, ram_load, NULL);
9085
9086 /* terminal init */
9087 memset(&display_state, 0, sizeof(display_state));
9088 if (nographic) {
9089 if (curses) {
9090 fprintf(stderr, "fatal: -nographic can't be used with -curses\n");
9091 exit(1);
9092 }
9093 /* nearly nothing to do */
9094 dumb_display_init(ds);
9095 } else if (vnc_display != NULL) {
9096 vnc_display_init(ds);
9097 if (vnc_display_open(ds, vnc_display) < 0)
9098 exit(1);
9099 } else
9100 #if defined(CONFIG_CURSES)
9101 if (curses) {
9102 curses_display_init(ds, full_screen);
9103 } else
9104 #endif
9105 {
9106 #if defined(CONFIG_SDL)
9107 sdl_display_init(ds, full_screen, no_frame);
9108 #elif defined(CONFIG_COCOA)
9109 cocoa_display_init(ds, full_screen);
9110 #else
9111 dumb_display_init(ds);
9112 #endif
9113 }
9114
9115 #ifndef _WIN32
9116 /* must be after terminal init, SDL library changes signal handlers */
9117 termsig_setup();
9118 #endif
9119
9120 /* Maintain compatibility with multiple stdio monitors */
9121 if (!strcmp(monitor_device,"stdio")) {
9122 for (i = 0; i < MAX_SERIAL_PORTS; i++) {
9123 const char *devname = serial_devices[i];
9124 if (devname && !strcmp(devname,"mon:stdio")) {
9125 monitor_device = NULL;
9126 break;
9127 } else if (devname && !strcmp(devname,"stdio")) {
9128 monitor_device = NULL;
9129 serial_devices[i] = "mon:stdio";
9130 break;
9131 }
9132 }
9133 }
9134 if (monitor_device) {
9135 monitor_hd = qemu_chr_open(monitor_device);
9136 if (!monitor_hd) {
9137 fprintf(stderr, "qemu: could not open monitor device '%s'\n", monitor_device);
9138 exit(1);
9139 }
9140 monitor_init(monitor_hd, !nographic);
9141 }
9142
9143 for(i = 0; i < MAX_SERIAL_PORTS; i++) {
9144 const char *devname = serial_devices[i];
9145 if (devname && strcmp(devname, "none")) {
9146 serial_hds[i] = qemu_chr_open(devname);
9147 if (!serial_hds[i]) {
9148 fprintf(stderr, "qemu: could not open serial device '%s'\n",
9149 devname);
9150 exit(1);
9151 }
9152 if (strstart(devname, "vc", 0))
9153 qemu_chr_printf(serial_hds[i], "serial%d console\r\n", i);
9154 }
9155 }
9156
9157 for(i = 0; i < MAX_PARALLEL_PORTS; i++) {
9158 const char *devname = parallel_devices[i];
9159 if (devname && strcmp(devname, "none")) {
9160 parallel_hds[i] = qemu_chr_open(devname);
9161 if (!parallel_hds[i]) {
9162 fprintf(stderr, "qemu: could not open parallel device '%s'\n",
9163 devname);
9164 exit(1);
9165 }
9166 if (strstart(devname, "vc", 0))
9167 qemu_chr_printf(parallel_hds[i], "parallel%d console\r\n", i);
9168 }
9169 }
9170
9171 machine->init(ram_size, vga_ram_size, boot_devices, ds,
9172 kernel_filename, kernel_cmdline, initrd_filename, cpu_model);
9173
9174 /* init USB devices */
9175 if (usb_enabled) {
9176 for(i = 0; i < usb_devices_index; i++) {
9177 if (usb_device_add(usb_devices[i]) < 0) {
9178 fprintf(stderr, "Warning: could not add USB device %s\n",
9179 usb_devices[i]);
9180 }
9181 }
9182 }
9183
9184 if (display_state.dpy_refresh) {
9185 display_state.gui_timer = qemu_new_timer(rt_clock, gui_update, &display_state);
9186 qemu_mod_timer(display_state.gui_timer, qemu_get_clock(rt_clock));
9187 }
9188
9189 #ifdef CONFIG_GDBSTUB
9190 if (use_gdbstub) {
9191 /* XXX: use standard host:port notation and modify options
9192 accordingly. */
9193 if (gdbserver_start(gdbstub_port) < 0) {
9194 fprintf(stderr, "qemu: could not open gdbstub device on port '%s'\n",
9195 gdbstub_port);
9196 exit(1);
9197 }
9198 }
9199 #endif
9200
9201 if (loadvm)
9202 do_loadvm(loadvm);
9203
9204 {
9205 /* XXX: simplify init */
9206 read_passwords();
9207 if (autostart) {
9208 vm_start();
9209 }
9210 }
9211
9212 if (daemonize) {
9213 uint8_t status = 0;
9214 ssize_t len;
9215 int fd;
9216
9217 again1:
9218 len = write(fds[1], &status, 1);
9219 if (len == -1 && (errno == EINTR))
9220 goto again1;
9221
9222 if (len != 1)
9223 exit(1);
9224
9225 chdir("/");
9226 TFR(fd = open("/dev/null", O_RDWR));
9227 if (fd == -1)
9228 exit(1);
9229
9230 dup2(fd, 0);
9231 dup2(fd, 1);
9232 dup2(fd, 2);
9233
9234 close(fd);
9235 }
9236
9237 main_loop();
9238 quit_timers();
9239
9240 #if !defined(_WIN32)
9241 /* close network clients */
9242 for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) {
9243 VLANClientState *vc;
9244
9245 for(vc = vlan->first_client; vc != NULL; vc = vc->next) {
9246 if (vc->fd_read == tap_receive) {
9247 char ifname[64];
9248 TAPState *s = vc->opaque;
9249
9250 if (sscanf(vc->info_str, "tap: ifname=%63s ", ifname) == 1 &&
9251 s->down_script[0])
9252 launch_script(s->down_script, ifname, s->fd);
9253 }
9254 #if defined(CONFIG_VDE)
9255 if (vc->fd_read == vde_from_qemu) {
9256 VDEState *s = vc->opaque;
9257 vde_close(s->vde);
9258 }
9259 #endif
9260 }
9261 }
9262 #endif
9263 return 0;
9264 }
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